2123315253455 has 16 divisors (see below), whose sum is σ = 2779642894464. Its totient is φ = 1544212498080.

The previous prime is 2123315253439. The next prime is 2123315253461. The reversal of 2123315253455 is 5543525133212.

It is not a de Polignac number, because 2123315253455 - 2⁴ = 2123315253439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7360652 + ... + 7643678.

It is an arithmetic number, because the mean of its divisors is an integer number (173727680904).

Almost surely, 2^{2123315253455} is an apocalyptic number.

2123315253455 is a deficient number, since it is larger than the sum of its proper divisors (656327641009).

2123315253455 is a wasteful number, since it uses less digits than its factorization.

2123315253455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419446.

The product of its digits is 540000, while the sum is 41.

The spelling of 2123315253455 in words is "two trillion, one hundred twenty-three billion, three hundred fifteen million, two hundred fifty-three thousand, four hundred fifty-five".