31010440442 has 8 divisors (see below), whose sum is σ = 47152861716. Its totient is φ = 15292819872.

The previous prime is 31010440337. The next prime is 31010440477. The reversal of 31010440442 is 24404401013.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30296535481 + 713904961 = 174059^2 + 26719^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106199993 + ... + 106200284.

Almost surely, 2^31010440442 is an apocalyptic number.

31010440442 is a deficient number, since it is larger than the sum of its proper divisors (16142421274).

31010440442 is a wasteful number, since it uses less digits than its factorization.

31010440442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212400352.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 31010440442 its reverse (24404401013), we get a palindrome (55414841455).

The spelling of 31010440442 in words is "thirty-one billion, ten million, four hundred forty thousand, four hundred forty-two".