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210303121023031 = 5631223305429419
BaseRepresentation
bin101111110100010100000010…
…110100101110000000110111
31000120121210010002112201212111
4233310110002310232000313
5210031101242440214111
62023135530422031451
762203620250112131
oct5764240264560067
91016553102481774
10210303121023031
1161011064254443
121b7061a1878587
139046664a21c9a
1439d0a225a2051
15194a70068da21
hexbf4502d2e037

210303121023031 has 8 divisors (see below), whose sum is σ = 210848924085120. Its totient is φ = 209757928823352.

The previous prime is 210303121023013. The next prime is 210303121023109. The reversal of 210303121023031 is 130320121303012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210303121023031 - 211 = 210303121020983 is a prime.

It is a super-2 number, since 2×2103031210230312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210303121022993 and 210303121023011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210303121083031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152026161 + ... + 153403258.

It is an arithmetic number, because the mean of its divisors is an integer number (26356115510640).

Almost surely, 2210303121023031 is an apocalyptic number.

210303121023031 is a deficient number, since it is larger than the sum of its proper divisors (545803062089).

210303121023031 is a wasteful number, since it uses less digits than its factorization.

210303121023031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305431205.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 210303121023031 its reverse (130320121303012), we get a palindrome (340623242326043).

The spelling of 210303121023031 in words is "two hundred ten trillion, three hundred three billion, one hundred twenty-one million, twenty-three thousand, thirty-one".

Divisors: 1 563 1223 688549 305429419 171956762897 373540179437 210303121023031