42100331 has 8 divisors (see below), whose sum is σ = 51815904. Its totient is φ = 33310080.

The previous prime is 42100307. The next prime is 42100337. The reversal of 42100331 is 13300124.

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

It is a cyclic number.

It is not a de Polignac number, because 42100331 - 2¹⁴ = 42083947 is a prime.

It is a super-2 number, since 2×42100331² = 3544875740619122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42100337) 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, 231230 + ... + 231411.

It is an arithmetic number, because the mean of its divisors is an integer number (6476988).

Almost surely, 2^42100331 is an apocalyptic number.

42100331 is a deficient number, since it is larger than the sum of its proper divisors (9715573).

42100331 is a wasteful number, since it uses less digits than its factorization.

42100331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462661.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 42100331 is about 6488.4767858104. The cubic root of 42100331 is about 347.8792326576.

Adding to 42100331 its reverse (13300124), we get a palindrome (55400455).

The spelling of 42100331 in words is "forty-two million, one hundred thousand, three hundred thirty-one".