57123020719 has 2 divisors, whose sum is σ = 57123020720. Its totient is φ = 57123020718.

The previous prime is 57123020671. The next prime is 57123020767. The reversal of 57123020719 is 91702032175.

It is a balanced prime because it is at equal distance from previous prime (57123020671) and next prime (57123020767).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57123020719 is a prime.

It is a super-2 number, since 2×57123020719² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57123020789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28561510359 + 28561510360.

It is an arithmetic number, because the mean of its divisors is an integer number (28561510360).

Almost surely, 2^57123020719 is an apocalyptic number.

57123020719 is a deficient number, since it is larger than the sum of its proper divisors (1).

57123020719 is an equidigital number, since it uses as much as digits as its factorization.

57123020719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 37.

The spelling of 57123020719 in words is "fifty-seven billion, one hundred twenty-three million, twenty thousand, seven hundred nineteen".