42310213531 has 4 divisors (see below), whose sum is σ = 42384573000. Its totient is φ = 42235854064.

The previous prime is 42310213501. The next prime is 42310213577. The reversal of 42310213531 is 13531201324.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42310213531 - 2¹⁷ = 42310082459 is a prime.

It is a super-2 number, since 2×42310213531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42310213496 and 42310213505.

It is not an unprimeable number, because it can be changed into a prime (42310213501) 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, 37178881 + ... + 37180018.

It is an arithmetic number, because the mean of its divisors is an integer number (10596143250).

Almost surely, 2^42310213531 is an apocalyptic number.

42310213531 is a deficient number, since it is larger than the sum of its proper divisors (74359469).

42310213531 is an equidigital number, since it uses as much as digits as its factorization.

42310213531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74359468.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 42310213531 its reverse (13531201324), we get a palindrome (55841414855).

The spelling of 42310213531 in words is "forty-two billion, three hundred ten million, two hundred thirteen thousand, five hundred thirty-one".