31405342130 has 8 divisors (see below), whose sum is σ = 56529615852. Its totient is φ = 12562136848.

The previous prime is 31405342127. The next prime is 31405342151. The reversal of 31405342130 is 3124350413.

It can be written as a sum of positive squares in 2 ways, for example, as 30903178849 + 502163281 = 175793^2 + 22409^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 31405342130.

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, 1570267097 + ... + 1570267116.

Almost surely, 2^31405342130 is an apocalyptic number.

31405342130 is a deficient number, since it is larger than the sum of its proper divisors (25124273722).

31405342130 is a wasteful number, since it uses less digits than its factorization.

31405342130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140534220.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 31405342130 its reverse (3124350413), we get a palindrome (34529692543).

The spelling of 31405342130 in words is "thirty-one billion, four hundred five million, three hundred forty-two thousand, one hundred thirty".