31131205430001 has 16 divisors (see below), whose sum is σ = 42185441376000. Its totient is φ = 20417450047488.

The previous prime is 31131205429979. The next prime is 31131205430053. The reversal of 31131205430001 is 10003450213113.

It is not a de Polignac number, because 31131205430001 - 2⁶ = 31131205429937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31131205437001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237037776 + ... + 237169073.

It is an arithmetic number, because the mean of its divisors is an integer number (2636590086000).

Almost surely, 2^{31131205430001} is an apocalyptic number.

It is an amenable number.

31131205430001 is a deficient number, since it is larger than the sum of its proper divisors (11054235945999).

31131205430001 is a wasteful number, since it uses less digits than its factorization.

31131205430001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474207208.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 31131205430001 its reverse (10003450213113), we get a palindrome (41134655643114).

The spelling of 31131205430001 in words is "thirty-one trillion, one hundred thirty-one billion, two hundred five million, four hundred thirty thousand, one".