2113553211 has 24 divisors (see below), whose sum is σ = 3576181824. Its totient is φ = 1097948880.

The previous prime is 2113553207. The next prime is 2113553213. The reversal of 2113553211 is 1123553112.

It is not a de Polignac number, because 2113553211 - 2² = 2113553207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2113553213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 651925 + ... + 655158.

It is an arithmetic number, because the mean of its divisors is an integer number (149007576).

Almost surely, 2^2113553211 is an apocalyptic number.

2113553211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2113553211 is a deficient number, since it is larger than the sum of its proper divisors (1462628613).

2113553211 is a wasteful number, since it uses less digits than its factorization.

2113553211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307111 (or 1307104 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 2113553211 is about 45973.3967746565. The cubic root of 2113553211 is about 1283.3281737166.

Subtracting from 2113553211 its reverse (1123553112), we obtain a palindrome (990000099).

The spelling of 2113553211 in words is "two billion, one hundred thirteen million, five hundred fifty-three thousand, two hundred eleven".