123402122522 has 16 divisors (see below), whose sum is σ = 211589498112. Its totient is φ = 52875873360.

The previous prime is 123402122513. The next prime is 123402122573. The reversal of 123402122522 is 225221204321.

It is a junction number, because it is equal to n+sod(n) for n = 123402122491 and 123402122500.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824354 + ... + 962477.

It is an arithmetic number, because the mean of its divisors is an integer number (13224343632).

Almost surely, 2^123402122522 is an apocalyptic number.

123402122522 is a deficient number, since it is larger than the sum of its proper divisors (88187375590).

123402122522 is a wasteful number, since it uses less digits than its factorization.

123402122522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791773.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 123402122522 its reverse (225221204321), we get a palindrome (348623326843).

The spelling of 123402122522 in words is "one hundred twenty-three billion, four hundred two million, one hundred twenty-two thousand, five hundred twenty-two".