123887988031 has 2 divisors, whose sum is σ = 123887988032. Its totient is φ = 123887988030.

The previous prime is 123887987987. The next prime is 123887988067. The reversal of 123887988031 is 130889788321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123887988031 - 2⁷ = 123887987903 is a prime.

It is a super-3 number, since 3×123887988031³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123887988331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61943994015 + 61943994016.

It is an arithmetic number, because the mean of its divisors is an integer number (61943994016).

Almost surely, 2^123887988031 is an apocalyptic number.

123887988031 is a deficient number, since it is larger than the sum of its proper divisors (1).

123887988031 is an equidigital number, since it uses as much as digits as its factorization.

123887988031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 58.

The spelling of 123887988031 in words is "one hundred twenty-three billion, eight hundred eighty-seven million, nine hundred eighty-eight thousand, thirty-one".