31301230131320 has 32 divisors (see below), whose sum is σ = 70488956229120. Its totient is φ = 12509614108800.

The previous prime is 31301230131287. The next prime is 31301230131329. The reversal of 31301230131320 is 2313103210313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31301230131329) 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, 339889127 + ... + 339981206.

It is an arithmetic number, because the mean of its divisors is an integer number (2202779882160).

Almost surely, 2^{31301230131320} is an apocalyptic number.

It is an amenable number.

31301230131320 is an abundant number, since it is smaller than the sum of its proper divisors (39187726097800).

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

31301230131320 is a wasteful number, since it uses less digits than its factorization.

31301230131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679871495 (or 679871491 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31301230131320 its reverse (2313103210313), we get a palindrome (33614333341633).

The spelling of 31301230131320 in words is "thirty-one trillion, three hundred one billion, two hundred thirty million, one hundred thirty-one thousand, three hundred twenty".