111011153105557 has 2 divisors, whose sum is σ = 111011153105558. Its totient is φ = 111011153105556.

The previous prime is 111011153105551. The next prime is 111011153105579. The reversal of 111011153105557 is 755501351110111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99393103612881 + 11618049492676 = 9969609^2 + 3408526^2 .

It is a cyclic number.

It is not a de Polignac number, because 111011153105557 - 2³ = 111011153105549 is a prime.

It is a super-2 number, since 2×111011153105557² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111011153105551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505576552778 + 55505576552779.

It is an arithmetic number, because the mean of its divisors is an integer number (55505576552779).

Almost surely, 2^{111011153105557} is an apocalyptic number.

It is an amenable number.

111011153105557 is a deficient number, since it is larger than the sum of its proper divisors (1).

111011153105557 is an equidigital number, since it uses as much as digits as its factorization.

111011153105557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13125, while the sum is 37.

The spelling of 111011153105557 in words is "one hundred eleven trillion, eleven billion, one hundred fifty-three million, one hundred five thousand, five hundred fifty-seven".