2151005455231 has 4 divisors (see below), whose sum is σ = 2151012543264. Its totient is φ = 2150998367200.

The previous prime is 2151005455213. The next prime is 2151005455241. The reversal of 2151005455231 is 1325545001512.

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

It is a cyclic number.

It is not a de Polignac number, because 2151005455231 - 2⁷ = 2151005455103 is a prime.

It is a super-2 number, since 2×2151005455231² (a number of 25 digits) 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 (2151005455241) 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, 3067450 + ... + 3702871.

It is an arithmetic number, because the mean of its divisors is an integer number (537753135816).

Almost surely, 2^{2151005455231} is an apocalyptic number.

2151005455231 is a deficient number, since it is larger than the sum of its proper divisors (7088033).

2151005455231 is an equidigital number, since it uses as much as digits as its factorization.

2151005455231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7088032.

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 2151005455231 in words is "two trillion, one hundred fifty-one billion, five million, four hundred fifty-five thousand, two hundred thirty-one".