123132430342 has 16 divisors (see below), whose sum is σ = 191048205312. Its totient is φ = 59457852360.

The previous prime is 123132430327. The next prime is 123132430387. The reversal of 123132430342 is 243034231321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 123132430342.

It is a congruent number.

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, 2008828 + ... + 2069215.

It is an arithmetic number, because the mean of its divisors is an integer number (11940512832).

Almost surely, 2^123132430342 is an apocalyptic number.

123132430342 is a deficient number, since it is larger than the sum of its proper divisors (67915774970).

123132430342 is a wasteful number, since it uses less digits than its factorization.

123132430342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078563.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 123132430342 its reverse (243034231321), we get a palindrome (366166661663).

It can be divided in two parts, 1231324 and 30342, that added together give a triangular number (1261666 = T₁₅₈₈).

The spelling of 123132430342 in words is "one hundred twenty-three billion, one hundred thirty-two million, four hundred thirty thousand, three hundred forty-two".