30616989121 has 16 divisors (see below), whose sum is σ = 31550238720. Its totient is φ = 29698461520.

The previous prime is 30616989119. The next prime is 30616989127. The reversal of 30616989121 is 12198961603.

It is a cyclic number.

It is not a de Polignac number, because 30616989121 - 2¹ = 30616989119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30616989127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4457736 + ... + 4464598.

It is an arithmetic number, because the mean of its divisors is an integer number (1971889920).

Almost surely, 2^30616989121 is an apocalyptic number.

It is an amenable number.

30616989121 is a deficient number, since it is larger than the sum of its proper divisors (933249599).

30616989121 is an equidigital number, since it uses as much as digits as its factorization.

30616989121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7916.

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 30616989121 in words is "thirty billion, six hundred sixteen million, nine hundred eighty-nine thousand, one hundred twenty-one".