31442204031 has 8 divisors (see below), whose sum is σ = 47911929984. Its totient is φ = 17966973720.

The previous prime is 31442204011. The next prime is 31442204077. The reversal of 31442204031 is 13040224413.

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

It is not a de Polignac number, because 31442204031 - 2¹¹ = 31442201983 is a prime.

It is a super-2 number, since 2×31442204031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31442203992 and 31442204010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31442204011) 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, 748623885 + ... + 748623926.

It is an arithmetic number, because the mean of its divisors is an integer number (5988991248).

Almost surely, 2^31442204031 is an apocalyptic number.

31442204031 is a deficient number, since it is larger than the sum of its proper divisors (16469725953).

31442204031 is a wasteful number, since it uses less digits than its factorization.

31442204031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497247821.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31442204031 its reverse (13040224413), we get a palindrome (44482428444).

The spelling of 31442204031 in words is "thirty-one billion, four hundred forty-two million, two hundred four thousand, thirty-one".