31201164203 has 16 divisors (see below), whose sum is σ = 36260784000. Its totient is φ = 26548044480.

The previous prime is 31201164199. The next prime is 31201164221. The reversal of 31201164203 is 30246110213.

It is a cyclic number.

It is not a de Polignac number, because 31201164203 - 2² = 31201164199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31201164283) 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, 881978 + ... + 916671.

It is an arithmetic number, because the mean of its divisors is an integer number (2266299000).

Almost surely, 2^31201164203 is an apocalyptic number.

31201164203 is a deficient number, since it is larger than the sum of its proper divisors (5059619797).

31201164203 is a wasteful number, since it uses less digits than its factorization.

31201164203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798762.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31201164203 its reverse (30246110213), we get a palindrome (61447274416).

The spelling of 31201164203 in words is "thirty-one billion, two hundred one million, one hundred sixty-four thousand, two hundred three".