111902770457 has 2 divisors, whose sum is σ = 111902770458. Its totient is φ = 111902770456.

The previous prime is 111902770439. The next prime is 111902770471. The reversal of 111902770457 is 754077209111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111286291216 + 616479241 = 333596^2 + 24829^2 .

It is a cyclic number.

It is not a de Polignac number, because 111902770457 - 2³⁶ = 43183293721 is a prime.

It is not a weakly prime, because it can be changed into another prime (111902770417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55951385228 + 55951385229.

It is an arithmetic number, because the mean of its divisors is an integer number (55951385229).

Almost surely, 2^111902770457 is an apocalyptic number.

It is an amenable number.

111902770457 is a deficient number, since it is larger than the sum of its proper divisors (1).

111902770457 is an equidigital number, since it uses as much as digits as its factorization.

111902770457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123480, while the sum is 44.

Adding to 111902770457 its reverse (754077209111), we get a palindrome (865979979568).

The spelling of 111902770457 in words is "one hundred eleven billion, nine hundred two million, seven hundred seventy thousand, four hundred fifty-seven".