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2120313101231 = 13307531273641
BaseRepresentation
bin11110110110101100100…
…000100101101110101111
321111200220021011122121102
4132312230200211232233
5234214400123214411
64302020340153315
7306121222664033
oct36665440455657
97450807148542
102120313101231
11748246518556
122a2b2069883b
13124c38585830
14748a361a1c3
153a24a6cdd3b
hex1edac825baf

2120313101231 has 8 divisors (see below), whose sum is σ = 2290851944304. Its totient is φ = 1950836806080.

The previous prime is 2120313101213. The next prime is 2120313101251. The reversal of 2120313101231 is 1321013130212.

It is a happy number.

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 2120313101231 - 222 = 2120308906927 is a prime.

It is a super-2 number, since 2×21203131012312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120313101251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265632830 + ... + 265640811.

It is an arithmetic number, because the mean of its divisors is an integer number (286356493038).

Almost surely, 22120313101231 is an apocalyptic number.

2120313101231 is a deficient number, since it is larger than the sum of its proper divisors (170538843073).

2120313101231 is a wasteful number, since it uses less digits than its factorization.

2120313101231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531273961.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2120313101231 its reverse (1321013130212), we get a palindrome (3441326231443).

The spelling of 2120313101231 in words is "two trillion, one hundred twenty billion, three hundred thirteen million, one hundred one thousand, two hundred thirty-one".

Divisors: 1 13 307 3991 531273641 6906557333 163101007787 2120313101231