31030203121330 has 32 divisors (see below), whose sum is σ = 63883005943680. Its totient is φ = 10630685911680.

The previous prime is 31030203121321. The next prime is 31030203121349. The reversal of 31030203121330 is 3312130203013.

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, 171593835 + ... + 171774574.

It is an arithmetic number, because the mean of its divisors is an integer number (1996343935740).

Almost surely, 2^{31030203121330} is an apocalyptic number.

31030203121330 is an abundant number, since it is smaller than the sum of its proper divisors (32852802822350).

31030203121330 is a wasteful number, since it uses less digits than its factorization.

31030203121330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343369714.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31030203121330 its reverse (3312130203013), we get a palindrome (34342333324343).

The spelling of 31030203121330 in words is "thirty-one trillion, thirty billion, two hundred three million, one hundred twenty-one thousand, three hundred thirty".