31203140031304 has 16 divisors (see below), whose sum is σ = 58506057747900. Its totient is φ = 15601524631872.

The previous prime is 31203140031263. The next prime is 31203140031331. The reversal of 31203140031304 is 40313004130213.

It can be written as a sum of positive squares in 2 ways, for example, as 28851916474404 + 2351223556900 = 5371398^2 + 1533370^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2656587 + ... + 8334490.

Almost surely, 2^{31203140031304} is an apocalyptic number.

It is an amenable number.

31203140031304 is a deficient number, since it is larger than the sum of its proper divisors (27302917716596).

31203140031304 is a wasteful number, since it uses less digits than its factorization.

31203140031304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11345952 (or 11345948 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31203140031304 its reverse (40313004130213), we get a palindrome (71516144161517).

The spelling of 31203140031304 in words is "thirty-one trillion, two hundred three billion, one hundred forty million, thirty-one thousand, three hundred four".