31203304121402 has 32 divisors (see below), whose sum is σ = 54057062897280. Its totient is φ = 13231727991360.

The previous prime is 31203304121389. The next prime is 31203304121417. The reversal of 31203304121402 is 20412140330213.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11455877 + ... + 13915592.

It is an arithmetic number, because the mean of its divisors is an integer number (1689283215540).

Almost surely, 2^{31203304121402} is an apocalyptic number.

31203304121402 is a deficient number, since it is larger than the sum of its proper divisors (22853758775878).

31203304121402 is a wasteful number, since it uses less digits than its factorization.

31203304121402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25372406.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 31203304121402 its reverse (20412140330213), we get a palindrome (51615444451615).

The spelling of 31203304121402 in words is "thirty-one trillion, two hundred three billion, three hundred four million, one hundred twenty-one thousand, four hundred two".