31330213030 has 16 divisors (see below), whose sum is σ = 56686585824. Its totient is φ = 12467151360.

The previous prime is 31330213027. The next prime is 31330213037. The reversal of 31330213030 is 3031203313.

It is a junction number, because it is equal to n+sod(n) for n = 31330212989 and 31330213007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31330213037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8114706 + ... + 8118565.

It is an arithmetic number, because the mean of its divisors is an integer number (3542911614).

Almost surely, 2^31330213030 is an apocalyptic number.

31330213030 is a deficient number, since it is larger than the sum of its proper divisors (25356372794).

31330213030 is a wasteful number, since it uses less digits than its factorization.

31330213030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16233471.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 31330213030 its reverse (3031203313), we get a palindrome (34361416343).

The spelling of 31330213030 in words is "thirty-one billion, three hundred thirty million, two hundred thirteen thousand, thirty".