3102121332 has 18 divisors (see below), whose sum is σ = 7841473458. Its totient is φ = 1034040432.

The previous prime is 3102121331. The next prime is 3102121381. The reversal of 3102121332 is 2331212013.

3102121332 is a `hidden beast` number, since 310 + 2 + 1 + 21 + 332 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2771390736 + 330730596 = 52644^2 + 18186^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3102121331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43084983 + ... + 43085054.

Almost surely, 2^3102121332 is an apocalyptic number.

It is an amenable number.

3102121332 is an abundant number, since it is smaller than the sum of its proper divisors (4739352126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3102121332 is a wasteful number, since it uses less digits than its factorization.

3102121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86170047 (or 86170042 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3102121332 is about 55696.6904941398. The cubic root of 3102121332 is about 1458.4322528543.

Adding to 3102121332 its reverse (2331212013), we get a palindrome (5433333345).

The spelling of 3102121332 in words is "three billion, one hundred two million, one hundred twenty-one thousand, three hundred thirty-two".