42101433431231 has 8 divisors (see below), whose sum is σ = 42328308574800. Its totient is φ = 41875149879808.

The previous prime is 42101433431173. The next prime is 42101433431237. The reversal of 42101433431231 is 13213433410124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42101433431231 is a prime.

It is a super-2 number, since 2×42101433431231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42101433431237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147755321 + ... + 148039986.

It is an arithmetic number, because the mean of its divisors is an integer number (5291038571850).

Almost surely, 2^{42101433431231} is an apocalyptic number.

42101433431231 is a deficient number, since it is larger than the sum of its proper divisors (226875143569).

42101433431231 is a wasteful number, since it uses less digits than its factorization.

42101433431231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295796073.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 42101433431231 its reverse (13213433410124), we get a palindrome (55314866841355).

The spelling of 42101433431231 in words is "forty-two trillion, one hundred one billion, four hundred thirty-three million, four hundred thirty-one thousand, two hundred thirty-one".