2154332352123 has 96 divisors (see below), whose sum is σ = 3693998131200. Its totient is φ = 1183759315200.

The previous prime is 2154332352119. The next prime is 2154332352127. The reversal of 2154332352123 is 3212532334512.

2154332352123 is a `hidden beast` number, since 2 + 1 + 5 + 433 + 2 + 3 + 5 + 212 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (2154332352119) and next prime (2154332352127).

It is not a de Polignac number, because 2154332352123 - 2² = 2154332352119 is a prime.

It is a super-2 number, since 2×2154332352123² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2154332352127) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 520493788 + ... + 520497926.

It is an arithmetic number, because the mean of its divisors is an integer number (38479147200).

Almost surely, 2^{2154332352123} is an apocalyptic number.

2154332352123 is a deficient number, since it is larger than the sum of its proper divisors (1539665779077).

2154332352123 is a wasteful number, since it uses less digits than its factorization.

2154332352123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5273 (or 5270 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

Adding to 2154332352123 its reverse (3212532334512), we get a palindrome (5366864686635).

The spelling of 2154332352123 in words is "two trillion, one hundred fifty-four billion, three hundred thirty-two million, three hundred fifty-two thousand, one hundred twenty-three".