42335031 has 4 divisors (see below), whose sum is σ = 56446712. Its totient is φ = 28223352.

The previous prime is 42335023. The next prime is 42335039. The reversal of 42335031 is 13053324.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (42335023) and next prime (42335039).

It is not a de Polignac number, because 42335031 - 2³ = 42335023 is a prime.

It is a super-2 number, since 2×42335031² = 3584509699541922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42334989 and 42335007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42335039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7055836 + ... + 7055841.

It is an arithmetic number, because the mean of its divisors is an integer number (14111678).

Almost surely, 2^42335031 is an apocalyptic number.

42335031 is a deficient number, since it is larger than the sum of its proper divisors (14111681).

42335031 is a wasteful number, since it uses less digits than its factorization.

42335031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14111680.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 42335031 is about 6506.5375584868. The cubic root of 42335031 is about 348.5244849264.

Adding to 42335031 its reverse (13053324), we get a palindrome (55388355).

The spelling of 42335031 in words is "forty-two million, three hundred thirty-five thousand, thirty-one".