31033231123012 has 12 divisors (see below), whose sum is σ = 54308204451900. Its totient is φ = 15516601279616.

The previous prime is 31033231122967. The next prime is 31033231123031. The reversal of 31033231123012 is 21032113233013.

It can be written as a sum of positive squares in 2 ways, for example, as 16397510779456 + 14635720343556 = 4049384^2 + 3825666^2 .

It is a super-2 number, since 2×31033231123012² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2444448 + ... + 8248744.

It is an arithmetic number, because the mean of its divisors is an integer number (4525683704325).

Almost surely, 2^{31033231123012} is an apocalyptic number.

It is an amenable number.

31033231123012 is a deficient number, since it is larger than the sum of its proper divisors (23274973328888).

31033231123012 is a wasteful number, since it uses less digits than its factorization.

31033231123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7140950 (or 7140948 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31033231123012 its reverse (21032113233013), we get a palindrome (52065344356025).

The spelling of 31033231123012 in words is "thirty-one trillion, thirty-three billion, two hundred thirty-one million, one hundred twenty-three thousand, twelve".