3123042420079 has 2 divisors, whose sum is σ = 3123042420080. Its totient is φ = 3123042420078.

The previous prime is 3123042420049. The next prime is 3123042420131. The reversal of 3123042420079 is 9700242403213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3123042420079 - 2¹⁷ = 3123042289007 is a prime.

It is a super-2 number, since 2×3123042420079² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123042420049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561521210039 + 1561521210040.

It is an arithmetic number, because the mean of its divisors is an integer number (1561521210040).

Almost surely, 2^{3123042420079} is an apocalyptic number.

3123042420079 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123042420079 is an equidigital number, since it uses as much as digits as its factorization.

3123042420079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 3123042420079 in words is "three trillion, one hundred twenty-three billion, forty-two million, four hundred twenty thousand, seventy-nine".