3121320101 has 8 divisors (see below), whose sum is σ = 3147506208. Its totient is φ = 3095170000.

The previous prime is 3121320091. The next prime is 3121320113. The reversal of 3121320101 is 1010231213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121320101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121320701) 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, 181871 + ... + 198291.

It is an arithmetic number, because the mean of its divisors is an integer number (393438276).

Almost surely, 2^3121320101 is an apocalyptic number.

It is an amenable number.

3121320101 is a deficient number, since it is larger than the sum of its proper divisors (26186107).

3121320101 is a wasteful number, since it uses less digits than its factorization.

3121320101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18003.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 3121320101 is about 55868.7757249074. The cubic root of 3121320101 is about 1461.4347722374.

Adding to 3121320101 its reverse (1010231213), we get a palindrome (4131551314).

The spelling of 3121320101 in words is "three billion, one hundred twenty-one million, three hundred twenty thousand, one hundred one".