31144232033312 has 48 divisors (see below), whose sum is σ = 61415817459192. Its totient is φ = 15546583449600.

The previous prime is 31144232033269. The next prime is 31144232033353. The reversal of 31144232033312 is 21333023244113.

It can be written as a sum of positive squares in 4 ways, for example, as 30767034614416 + 377197418896 = 5546804^2 + 614164^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51450812 + ... + 52052612.

Almost surely, 2^{31144232033312} is an apocalyptic number.

31144232033312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31144232033312 is a deficient number, since it is larger than the sum of its proper divisors (30271585425880).

31144232033312 is a wasteful number, since it uses less digits than its factorization.

31144232033312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604461 (or 604453 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 31144232033312 its reverse (21333023244113), we get a palindrome (52477255277425).

The spelling of 31144232033312 in words is "thirty-one trillion, one hundred forty-four billion, two hundred thirty-two million, thirty-three thousand, three hundred twelve".