2102640051523 has 8 divisors (see below), whose sum is σ = 2326096037376. Its totient is φ = 1884568547400.

The previous prime is 2102640051493. The next prime is 2102640051557. The reversal of 2102640051523 is 3251500462012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2102640051523 - 2¹³ = 2102640043331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102640051563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346119611 + ... + 1346121172.

It is an arithmetic number, because the mean of its divisors is an integer number (290762004672).

Almost surely, 2^{2102640051523} is an apocalyptic number.

2102640051523 is a deficient number, since it is larger than the sum of its proper divisors (223455985853).

2102640051523 is a wasteful number, since it uses less digits than its factorization.

2102640051523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692240865.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 2102640051523 in words is "two trillion, one hundred two billion, six hundred forty million, fifty-one thousand, five hundred twenty-three".