30311896990 has 16 divisors (see below), whose sum is σ = 54718658352. Its totient is φ = 12089815744.

The previous prime is 30311896963. The next prime is 30311897003. The reversal of 30311896990 is 9969811303.

It is a super-2 number, since 2×30311896990² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4364239 + ... + 4371178.

It is an arithmetic number, because the mean of its divisors is an integer number (3419916147).

Almost surely, 2^30311896990 is an apocalyptic number.

30311896990 is a deficient number, since it is larger than the sum of its proper divisors (24406761362).

30311896990 is a wasteful number, since it uses less digits than its factorization.

30311896990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8735771.

The product of its (nonzero) digits is 314928, while the sum is 49.

The spelling of 30311896990 in words is "thirty billion, three hundred eleven million, eight hundred ninety-six thousand, nine hundred ninety".