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1213033000031 = 2952180285459
BaseRepresentation
bin10001101001101110011…
…001101010110001011111
311021222001100121002222022
4101221232121222301133
5124333242422000111
62325132031010355
7153432042242456
oct21515631526137
94258040532868
101213033000031
114284985609a6
121771163699bb
138a508772048
14429d5403b9d
1521848eaa2db
hex11a6e66ac5f

1213033000031 has 8 divisors (see below), whose sum is σ = 1257270303600. Its totient is φ = 1168956268480.

The previous prime is 1213033000021. The next prime is 1213033000051. The reversal of 1213033000031 is 1300003303121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1213033000031 is a prime.

It is a super-2 number, since 2×12130330000312 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1213032999973 and 1213033000009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213033000021) 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, 40127621 + ... + 40157838.

It is an arithmetic number, because the mean of its divisors is an integer number (157158787950).

Almost surely, 21213033000031 is an apocalyptic number.

1213033000031 is a deficient number, since it is larger than the sum of its proper divisors (44237303569).

1213033000031 is an equidigital number, since it uses as much as digits as its factorization.

1213033000031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80286009.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 1213033000031 its reverse (1300003303121), we get a palindrome (2513036303152).

The spelling of 1213033000031 in words is "one trillion, two hundred thirteen billion, thirty-three million, thirty-one", and thus it is an aban number.

Divisors: 1 29 521 15109 80285459 2328278311 41828724139 1213033000031