31304021230340 has 12 divisors (see below), whose sum is σ = 65738444583756. Its totient is φ = 12521608492128.

The previous prime is 31304021230277. The next prime is 31304021230379. The reversal of 31304021230340 is 4303212040313.

It can be written as a sum of positive squares in 2 ways, for example, as 17887096910596 + 13416924319744 = 4229314^2 + 3662912^2 .

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, 782600530739 + ... + 782600530778.

It is an arithmetic number, because the mean of its divisors is an integer number (5478203715313).

Almost surely, 2^{31304021230340} is an apocalyptic number.

It is an amenable number.

31304021230340 is an abundant number, since it is smaller than the sum of its proper divisors (34434423353416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31304021230340 is a wasteful number, since it uses less digits than its factorization.

31304021230340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565201061526 (or 1565201061524 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31304021230340 its reverse (4303212040313), we get a palindrome (35607233270653).

The spelling of 31304021230340 in words is "thirty-one trillion, three hundred four billion, twenty-one million, two hundred thirty thousand, three hundred forty".