42001012232 has 8 divisors (see below), whose sum is σ = 78751897950. Its totient is φ = 21000506112.

The previous prime is 42001012223. The next prime is 42001012271. The reversal of 42001012232 is 23221010024.

It can be written as a sum of positive squares in only one way, i.e., 22980740836 + 19020271396 = 151594^2 + 137914^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×42001012232² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42001012232.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2625063257 + ... + 2625063272.

Almost surely, 2^42001012232 is an apocalyptic number.

It is an amenable number.

42001012232 is a deficient number, since it is larger than the sum of its proper divisors (36750885718).

42001012232 is a wasteful number, since it uses less digits than its factorization.

42001012232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250126535 (or 5250126531 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 42001012232 its reverse (23221010024), we get a palindrome (65222022256).

The spelling of 42001012232 in words is "forty-two billion, one million, twelve thousand, two hundred thirty-two".