13123232042 has 8 divisors (see below), whose sum is σ = 20842780356. Its totient is φ = 6175638592.

The previous prime is 13123232033. The next prime is 13123232051. The reversal of 13123232042 is 24023232131.

It is an interprime number because it is at equal distance from previous prime (13123232033) and next prime (13123232051).

It can be written as a sum of positive squares in 2 ways, for example, as 10209283681 + 2913948361 = 101041^2 + 53981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13123231999 and 13123232017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192988673 + ... + 192988740.

Almost surely, 2^13123232042 is an apocalyptic number.

13123232042 is a deficient number, since it is larger than the sum of its proper divisors (7719548314).

13123232042 is a wasteful number, since it uses less digits than its factorization.

13123232042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385977432.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13123232042 its reverse (24023232131), we get a palindrome (37146464173).

The spelling of 13123232042 in words is "thirteen billion, one hundred twenty-three million, two hundred thirty-two thousand, forty-two".