311200232001 has 16 divisors (see below), whose sum is σ = 447425240640. Its totient is φ = 191753671680.

The previous prime is 311200231999. The next prime is 311200232003. The reversal of 311200232001 is 100232002113.

It is an interprime number because it is at equal distance from previous prime (311200231999) and next prime (311200232003).

It is not a de Polignac number, because 311200232001 - 2¹ = 311200231999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (311200232003) 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, 66578800 + ... + 66583473.

It is an arithmetic number, because the mean of its divisors is an integer number (27964077540).

Almost surely, 2^311200232001 is an apocalyptic number.

It is an amenable number.

311200232001 is a deficient number, since it is larger than the sum of its proper divisors (136225008639).

311200232001 is a wasteful number, since it uses less digits than its factorization.

311200232001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133162336.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 311200232001 its reverse (100232002113), we get a palindrome (411432234114).

The spelling of 311200232001 in words is "three hundred eleven billion, two hundred million, two hundred thirty-two thousand, one".