3011312921 has 2 divisors, whose sum is σ = 3011312922. Its totient is φ = 3011312920.

The previous prime is 3011312903. The next prime is 3011312929. The reversal of 3011312921 is 1292131103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2931031321 + 80281600 = 54139^2 + 8960^2 .

It is a cyclic number.

It is not a de Polignac number, because 3011312921 - 2²⁶ = 2944204057 is a prime.

It is not a weakly prime, because it can be changed into another prime (3011312929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1505656460 + 1505656461.

It is an arithmetic number, because the mean of its divisors is an integer number (1505656461).

Almost surely, 2^3011312921 is an apocalyptic number.

It is an amenable number.

3011312921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3011312921 is an equidigital number, since it uses as much as digits as its factorization.

3011312921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 3011312921 is about 54875.4309413603. The cubic root of 3011312921 is about 1444.0601913264.

It can be divided in two parts, 30113 and 12921, that added together give a palindrome (43034).

The spelling of 3011312921 in words is "three billion, eleven million, three hundred twelve thousand, nine hundred twenty-one".