3121329977 has 8 divisors (see below), whose sum is σ = 3275039040. Its totient is φ = 2969120880.

The previous prime is 3121329973. The next prime is 3121329979. The reversal of 3121329977 is 7799231213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3121329977 - 2² = 3121329973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121329973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370727 + ... + 379052.

It is an arithmetic number, because the mean of its divisors is an integer number (409379880).

Almost surely, 2^3121329977 is an apocalyptic number.

It is an amenable number.

3121329977 is a deficient number, since it is larger than the sum of its proper divisors (153709063).

3121329977 is a wasteful number, since it uses less digits than its factorization.

3121329977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749983.

The product of its digits is 142884, while the sum is 44.

The square root of 3121329977 is about 55868.8641105222. The cubic root of 3121329977 is about 1461.4363135847.

The spelling of 3121329977 in words is "three billion, one hundred twenty-one million, three hundred twenty-nine thousand, nine hundred seventy-seven".