31243299999999 has 32 divisors (see below), whose sum is σ = 42737438329344. Its totient is φ = 20291597921280.

The previous prime is 31243299999943. The next prime is 31243300000019. The reversal of 31243299999999 is 99999999234213.

It is not a de Polignac number, because 31243299999999 - 2¹² = 31243299995903 is a prime.

It is a super-2 number, since 2×31243299999999² (a number of 28 digits) contains 22 as substring.

31243299999999 is a modest number, since divided by 9999999 gives 3124329 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31243299999799) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83731054 + ... + 84103364.

It is an arithmetic number, because the mean of its divisors is an integer number (1335544947792).

Almost surely, 2^{31243299999999} is an apocalyptic number.

31243299999999 is a deficient number, since it is larger than the sum of its proper divisors (11494138329345).

31243299999999 is a wasteful number, since it uses less digits than its factorization.

31243299999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374047.

The product of its digits is 6198727824, while the sum is 87.

The spelling of 31243299999999 in words is "thirty-one trillion, two hundred forty-three billion, two hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".