1210100100113 has 4 divisors (see below), whose sum is σ = 1262713147968. Its totient is φ = 1157487052260.

The previous prime is 1210100100103. The next prime is 1210100100197. The reversal of 1210100100113 is 3110010010121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1210100100113 - 2⁶ = 1210100100049 is a prime.

It is a super-2 number, since 2×1210100100113² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1210100100094 and 1210100100103.

It is not an unprimeable number, because it can be changed into a prime (1210100100103) 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, 26306523893 + ... + 26306523938.

It is an arithmetic number, because the mean of its divisors is an integer number (315678286992).

Almost surely, 2^{1210100100113} is an apocalyptic number.

It is an amenable number.

1210100100113 is a deficient number, since it is larger than the sum of its proper divisors (52613047855).

1210100100113 is an equidigital number, since it uses as much as digits as its factorization.

1210100100113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52613047854.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 1210100100113 its reverse (3110010010121), we get a palindrome (4320110110234).

The spelling of 1210100100113 in words is "one trillion, two hundred ten billion, one hundred million, one hundred thousand, one hundred thirteen".