42001252431430 has 32 divisors (see below), whose sum is σ = 75938891502240. Its totient is φ = 16725705277440.

The previous prime is 42001252431401. The next prime is 42001252431499. The reversal of 42001252431430 is 3413425210024.

It is a junction number, because it is equal to n+sod(n) for n = 42001252431392 and 42001252431401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26190645 + ... + 27748015.

It is an arithmetic number, because the mean of its divisors is an integer number (2373090359445).

Almost surely, 2^{42001252431430} is an apocalyptic number.

42001252431430 is a deficient number, since it is larger than the sum of its proper divisors (33937639070810).

42001252431430 is a wasteful number, since it uses less digits than its factorization.

42001252431430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569384.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 42001252431430 its reverse (3413425210024), we get a palindrome (45414677641454).

The spelling of 42001252431430 in words is "forty-two trillion, one billion, two hundred fifty-two million, four hundred thirty-one thousand, four hundred thirty".