210231100113 has 16 divisors (see below), whose sum is σ = 283283535360. Its totient is φ = 138667239936.

The previous prime is 210231100109. The next prime is 210231100139. The reversal of 210231100113 is 311001132012.

It is a happy number.

It is not a de Polignac number, because 210231100113 - 2² = 210231100109 is a prime.

It is a super-2 number, since 2×210231100113² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210231100092 and 210231100101.

It is not an unprimeable number, because it can be changed into a prime (210231100153) 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, 869931 + ... + 1085007.

It is an arithmetic number, because the mean of its divisors is an integer number (17705220960).

Almost surely, 2^210231100113 is an apocalyptic number.

It is an amenable number.

210231100113 is a deficient number, since it is larger than the sum of its proper divisors (73052435247).

210231100113 is a wasteful number, since it uses less digits than its factorization.

210231100113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218536.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 210231100113 its reverse (311001132012), we get a palindrome (521232232125).

The spelling of 210231100113 in words is "two hundred ten billion, two hundred thirty-one million, one hundred thousand, one hundred thirteen".