123020154143253 has 6 divisors (see below), whose sum is σ = 177695778206934. Its totient is φ = 82013436095496.

The previous prime is 123020154143209. The next prime is 123020154143267. The reversal of 123020154143253 is 352341451020321.

123020154143253 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 20 + 1 + 541 + 43 + 2 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 121108220186724 + 1911933956529 = 11004918^2 + 1382727^2 .

It is not a de Polignac number, because 123020154143253 - 2²⁹ = 123019617272341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123020154143153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6834453007950 + ... + 6834453007967.

It is an arithmetic number, because the mean of its divisors is an integer number (29615963034489).

Almost surely, 2^{123020154143253} is an apocalyptic number.

It is an amenable number.

123020154143253 is a deficient number, since it is larger than the sum of its proper divisors (54675624063681).

123020154143253 is a wasteful number, since it uses less digits than its factorization.

123020154143253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13668906015923 (or 13668906015920 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 123020154143253 in words is "one hundred twenty-three trillion, twenty billion, one hundred fifty-four million, one hundred forty-three thousand, two hundred fifty-three".