31020200030 has 16 divisors (see below), whose sum is σ = 57761752320. Its totient is φ = 11980215072.

The previous prime is 31020200023. The next prime is 31020200047. The reversal of 31020200030 is 3000202013.

It is a junction number, because it is equal to n+sod(n) for n = 31020199984 and 31020200020.

It is a congruent number.

It is an unprimeable number.

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, 53482814 + ... + 53483393.

It is an arithmetic number, because the mean of its divisors is an integer number (3610109520).

Almost surely, 2^31020200030 is an apocalyptic number.

31020200030 is a deficient number, since it is larger than the sum of its proper divisors (26741552290).

31020200030 is a wasteful number, since it uses less digits than its factorization.

31020200030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106966243.

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 31020200030 its reverse (3000202013), we get a palindrome (34020402043).

The spelling of 31020200030 in words is "thirty-one billion, twenty million, two hundred thousand, thirty".