2111551453 has 48 divisors (see below), whose sum is σ = 2659806720. Its totient is φ = 1654732800.

The previous prime is 2111551439. The next prime is 2111551489. The reversal of 2111551453 is 3541551112.

It is not a de Polignac number, because 2111551453 - 2²¹ = 2109454301 is a prime.

It is a super-2 number, since 2×2111551453² = 8917299077332822418, 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 (2111551423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2092213 + ... + 2093221.

It is an arithmetic number, because the mean of its divisors is an integer number (55412640).

Almost surely, 2^2111551453 is an apocalyptic number.

It is an amenable number.

2111551453 is a deficient number, since it is larger than the sum of its proper divisors (548255267).

2111551453 is a wasteful number, since it uses less digits than its factorization.

2111551453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1087 counting only the distinct ones).

The product of its digits is 3000, while the sum is 28.

The square root of 2111551453 is about 45951.6207875196. The cubic root of 2111551453 is about 1282.9228966596.

The spelling of 2111551453 in words is "two billion, one hundred eleven million, five hundred fifty-one thousand, four hundred fifty-three".