3111479389 has 2 divisors, whose sum is σ = 3111479390. Its totient is φ = 3111479388.

The previous prime is 3111479351. The next prime is 3111479407. The reversal of 3111479389 is 9839741113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2965673764 + 145805625 = 54458^2 + 12075^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111479389 - 2¹⁵ = 3111446621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3111479089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555739694 + 1555739695.

It is an arithmetic number, because the mean of its divisors is an integer number (1555739695).

Almost surely, 2^3111479389 is an apocalyptic number.

It is an amenable number.

3111479389 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111479389 is an equidigital number, since it uses as much as digits as its factorization.

3111479389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 46.

The square root of 3111479389 is about 55780.6363265963. The cubic root of 3111479389 is about 1459.8973138826.

The spelling of 3111479389 in words is "three billion, one hundred eleven million, four hundred seventy-nine thousand, three hundred eighty-nine".