31240334402012 has 24 divisors (see below), whose sum is σ = 54727612190496. Its totient is φ = 15603877522688.

The previous prime is 31240334401981. The next prime is 31240334402023. The reversal of 31240334402012 is 21020443304213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33205193 + ... + 34133055.

It is an arithmetic number, because the mean of its divisors is an integer number (2280317174604).

Almost surely, 2^{31240334402012} is an apocalyptic number.

It is an amenable number.

31240334402012 is a deficient number, since it is larger than the sum of its proper divisors (23487277788484).

31240334402012 is a wasteful number, since it uses less digits than its factorization.

31240334402012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936637 (or 936635 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 31240334402012 its reverse (21020443304213), we get a palindrome (52260777706225).

The spelling of 31240334402012 in words is "thirty-one trillion, two hundred forty billion, three hundred thirty-four million, four hundred two thousand, twelve".