21110001211313 has 16 divisors (see below), whose sum is σ = 24363174850560. Its totient is φ = 17916238939536.

The previous prime is 21110001211309. The next prime is 21110001211331. The reversal of 21110001211313 is 31311210001112.

It is not a de Polignac number, because 21110001211313 - 2² = 21110001211309 is a prime.

It is a super-2 number, since 2×21110001211313² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21110001211291 and 21110001211300.

It is not an unprimeable number, because it can be changed into a prime (21110001213313) 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, 3513356 + ... + 7386722.

It is an arithmetic number, because the mean of its divisors is an integer number (1522698428160).

Almost surely, 2^{21110001211313} is an apocalyptic number.

It is an amenable number.

21110001211313 is a deficient number, since it is larger than the sum of its proper divisors (3253173639247).

21110001211313 is a wasteful number, since it uses less digits than its factorization.

21110001211313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881036.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 21110001211313 its reverse (31311210001112), we get a palindrome (52421211212425).

The spelling of 21110001211313 in words is "twenty-one trillion, one hundred ten billion, one million, two hundred eleven thousand, three hundred thirteen".