2135252520123 has 32 divisors (see below), whose sum is σ = 3022221818880. Its totient is φ = 1336324684800.

The previous prime is 2135252520097. The next prime is 2135252520131. The reversal of 2135252520123 is 3210252525312.

It is not a de Polignac number, because 2135252520123 - 2²⁴ = 2135235742907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2135252525123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89700823 + ... + 89724623.

It is an arithmetic number, because the mean of its divisors is an integer number (94444431840).

Almost surely, 2^{2135252520123} is an apocalyptic number.

2135252520123 is a deficient number, since it is larger than the sum of its proper divisors (886969298757).

2135252520123 is a wasteful number, since it uses less digits than its factorization.

2135252520123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28267.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 2135252520123 in words is "two trillion, one hundred thirty-five billion, two hundred fifty-two million, five hundred twenty thousand, one hundred twenty-three".