31002420234001 has 16 divisors (see below), whose sum is σ = 31631809897296. Its totient is φ = 30378820663296.

The previous prime is 31002420233999. The next prime is 31002420234031. The reversal of 31002420234001 is 10043202420013.

It can be written as a sum of positive squares in 8 ways, for example, as 1511264542225 + 29491155691776 = 1229335^2 + 5430576^2 .

It is a cyclic number.

It is not a de Polignac number, because 31002420234001 - 2¹ = 31002420233999 is a prime.

It is a super-2 number, since 2×31002420234001² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31002420234031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16445641 + ... + 18233593.

It is an arithmetic number, because the mean of its divisors is an integer number (1976988118581).

Almost surely, 2^{31002420234001} is an apocalyptic number.

It is an amenable number.

31002420234001 is a deficient number, since it is larger than the sum of its proper divisors (629389663295).

31002420234001 is a wasteful number, since it uses less digits than its factorization.

31002420234001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789572.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31002420234001 its reverse (10043202420013), we get a palindrome (41045622654014).

The spelling of 31002420234001 in words is "thirty-one trillion, two billion, four hundred twenty million, two hundred thirty-four thousand, one".