123154213753 has 4 divisors (see below), whose sum is σ = 123232607568. Its totient is φ = 123075819940.

The previous prime is 123154213739. The next prime is 123154213807. The reversal of 123154213753 is 357312451321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123154213753 - 2³³ = 114564279161 is a prime.

It is a super-2 number, since 2×123154213753² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123154243753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39194551 + ... + 39197692.

It is an arithmetic number, because the mean of its divisors is an integer number (30808151892).

Almost surely, 2^123154213753 is an apocalyptic number.

It is an amenable number.

123154213753 is a deficient number, since it is larger than the sum of its proper divisors (78393815).

123154213753 is an equidigital number, since it uses as much as digits as its factorization.

123154213753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78393814.

The product of its digits is 75600, while the sum is 37.

The spelling of 123154213753 in words is "one hundred twenty-three billion, one hundred fifty-four million, two hundred thirteen thousand, seven hundred fifty-three".