103130121987 has 24 divisors (see below), whose sum is σ = 154121516640. Its totient is φ = 66374407680.

The previous prime is 103130121973. The next prime is 103130122001. The reversal of 103130121987 is 789121031301.

It is an interprime number because it is at equal distance from previous prime (103130121973) and next prime (103130122001).

It is not a de Polignac number, because 103130121987 - 2⁶ = 103130121923 is a prime.

It is a super-2 number, since 2×103130121987² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103130121187) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2655187 + ... + 2693747.

It is an arithmetic number, because the mean of its divisors is an integer number (6421729860).

Almost surely, 2^103130121987 is an apocalyptic number.

103130121987 is a deficient number, since it is larger than the sum of its proper divisors (50991394653).

103130121987 is a wasteful number, since it uses less digits than its factorization.

103130121987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48843 (or 48840 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The spelling of 103130121987 in words is "one hundred three billion, one hundred thirty million, one hundred twenty-one thousand, nine hundred eighty-seven".