123315531422 has 4 divisors (see below), whose sum is σ = 184973297136. Its totient is φ = 61657765710.

The previous prime is 123315531371. The next prime is 123315531487. The reversal of 123315531422 is 224135513321.

123315531422 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 224135513321 = 1259 ⋅178026619.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30828882854 + ... + 30828882857.

It is an arithmetic number, because the mean of its divisors is an integer number (46243324284).

Almost surely, 2^123315531422 is an apocalyptic number.

123315531422 is a deficient number, since it is larger than the sum of its proper divisors (61657765714).

123315531422 is an equidigital number, since it uses as much as digits as its factorization.

123315531422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61657765713.

The product of its digits is 21600, while the sum is 32.

The spelling of 123315531422 in words is "one hundred twenty-three billion, three hundred fifteen million, five hundred thirty-one thousand, four hundred twenty-two".