1123881864037 has 2 divisors, whose sum is σ = 1123881864038. Its totient is φ = 1123881864036.

The previous prime is 1123881864023. The next prime is 1123881864041. The reversal of 1123881864037 is 7304681883211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 992641586596 + 131240277441 = 996314^2 + 362271^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123881864037 is a prime.

It is a super-2 number, since 2×1123881864037² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123881864067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561940932018 + 561940932019.

It is an arithmetic number, because the mean of its divisors is an integer number (561940932019).

Almost surely, 2^{1123881864037} is an apocalyptic number.

It is an amenable number.

1123881864037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123881864037 is an equidigital number, since it uses as much as digits as its factorization.

1123881864037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 1123881864037 in words is "one trillion, one hundred twenty-three billion, eight hundred eighty-one million, eight hundred sixty-four thousand, thirty-seven".