31144202412 has 48 divisors (see below), whose sum is σ = 76981847040. Its totient is φ = 9772356672.

The previous prime is 31144202407. The next prime is 31144202417. The reversal of 31144202412 is 21420244113.

It is an interprime number because it is at equal distance from previous prime (31144202407) and next prime (31144202417).

It is a super-2 number, since 2×31144202412² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31144202417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399228 + ... + 470819.

It is an arithmetic number, because the mean of its divisors is an integer number (1603788480).

Almost surely, 2^31144202412 is an apocalyptic number.

It is an amenable number.

31144202412 is an abundant number, since it is smaller than the sum of its proper divisors (45837644628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31144202412 is a wasteful number, since it uses less digits than its factorization.

31144202412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870230 (or 870228 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31144202412 its reverse (21420244113), we get a palindrome (52564446525).

The spelling of 31144202412 in words is "thirty-one billion, one hundred forty-four million, two hundred two thousand, four hundred twelve".