3123131101 has 2 divisors, whose sum is σ = 3123131102. Its totient is φ = 3123131100.

The previous prime is 3123131093. The next prime is 3123131119. The reversal of 3123131101 is 1011313213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1837836900 + 1285294201 = 42870^2 + 35851^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123131101 - 2³ = 3123131093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123101101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561565550 + 1561565551.

It is an arithmetic number, because the mean of its divisors is an integer number (1561565551).

Almost surely, 2^3123131101 is an apocalyptic number.

It is an amenable number.

3123131101 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123131101 is an equidigital number, since it uses as much as digits as its factorization.

3123131101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 3123131101 is about 55884.9809966864. The cubic root of 3123131101 is about 1461.7173606493.

Adding to 3123131101 its reverse (1011313213), we get a palindrome (4134444314).

The spelling of 3123131101 in words is "three billion, one hundred twenty-three million, one hundred thirty-one thousand, one hundred one".