211013200031 has 4 divisors (see below), whose sum is σ = 211014355392. Its totient is φ = 211012044672.

The previous prime is 211013199979. The next prime is 211013200039. The reversal of 211013200031 is 130002310112.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211013200031 is a prime.

It is a super-2 number, since 2×211013200031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211013199979 and 211013200015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211013200039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236591 + ... + 691376.

It is an arithmetic number, because the mean of its divisors is an integer number (52753588848).

Almost surely, 2^211013200031 is an apocalyptic number.

211013200031 is a deficient number, since it is larger than the sum of its proper divisors (1155361).

211013200031 is an equidigital number, since it uses as much as digits as its factorization.

211013200031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155360.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 211013200031 its reverse (130002310112), we get a palindrome (341015510143).

The spelling of 211013200031 in words is "two hundred eleven billion, thirteen million, two hundred thousand, thirty-one".