31203401534012 has 6 divisors (see below), whose sum is σ = 54605952684528. Its totient is φ = 15601700767004.

The previous prime is 31203401533973. The next prime is 31203401534033. The reversal of 31203401534012 is 21043510430213.

It is a super-2 number, since 2×31203401534012² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3900425191748 + ... + 3900425191755.

It is an arithmetic number, because the mean of its divisors is an integer number (9100992114088).

Almost surely, 2^{31203401534012} is an apocalyptic number.

It is an amenable number.

31203401534012 is a deficient number, since it is larger than the sum of its proper divisors (23402551150516).

31203401534012 is a wasteful number, since it uses less digits than its factorization.

31203401534012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7800850383507 (or 7800850383505 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 31203401534012 its reverse (21043510430213), we get a palindrome (52246911964225).

The spelling of 31203401534012 in words is "thirty-one trillion, two hundred three billion, four hundred one million, five hundred thirty-four thousand, twelve".