13100020010405 has 24 divisors (see below), whose sum is σ = 16281449313792. Its totient is φ = 10118223815616.

The previous prime is 13100020010309. The next prime is 13100020010419. The reversal of 13100020010405 is 50401002000131.

It is not a de Polignac number, because 13100020010405 - 2¹² = 13100020006309 is a prime.

It is a super-2 number, since 2×13100020010405² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139756784 + ... + 139850486.

It is an arithmetic number, because the mean of its divisors is an integer number (678393721408).

Almost surely, 2^{13100020010405} is an apocalyptic number.

It is an amenable number.

13100020010405 is a deficient number, since it is larger than the sum of its proper divisors (3181429303387).

13100020010405 is an equidigital number, since it uses as much as digits as its factorization.

13100020010405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127013 (or 126984 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 13100020010405 its reverse (50401002000131), we get a palindrome (63501022010536).

The spelling of 13100020010405 in words is "thirteen trillion, one hundred billion, twenty million, ten thousand, four hundred five".