2151235235430 has 64 divisors (see below), whose sum is σ = 5738695058880. Its totient is φ = 573455953152.

The previous prime is 2151235235423. The next prime is 2151235235447. The reversal of 2151235235430 is 345325321512.

2151235235430 is a `hidden beast` number, since 2 + 1 + 5 + 123 + 523 + 5 + 4 + 3 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 684769 + ... + 2184348.

It is an arithmetic number, because the mean of its divisors is an integer number (89667110295).

Almost surely, 2^{2151235235430} is an apocalyptic number.

2151235235430 is an abundant number, since it is smaller than the sum of its proper divisors (3587459823450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2151235235430 is a wasteful number, since it uses less digits than its factorization.

2151235235430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871910 (or 2871904 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 2151235235430 in words is "two trillion, one hundred fifty-one billion, two hundred thirty-five million, two hundred thirty-five thousand, four hundred thirty".