10513911 has 4 divisors (see below), whose sum is σ = 14018552. Its totient is φ = 7009272.

The previous prime is 10513903. The next prime is 10513933. The reversal of 10513911 is 11931501.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10513911 - 2³ = 10513903 is a prime.

It is a super-2 number, since 2×10513911² = 221084649031842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10513901) 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, 1752316 + ... + 1752321.

It is an arithmetic number, because the mean of its divisors is an integer number (3504638).

Almost surely, 2^10513911 is an apocalyptic number.

10513911 is a deficient number, since it is larger than the sum of its proper divisors (3504641).

10513911 is an equidigital number, since it uses as much as digits as its factorization.

10513911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3504640.

The product of its (nonzero) digits is 135, while the sum is 21.

The square root of 10513911 is about 3242.5161526198. The cubic root of 10513911 is about 219.0726182731.

The spelling of 10513911 in words is "ten million, five hundred thirteen thousand, nine hundred eleven".