102542132012520 has 64 divisors (see below), whose sum is σ = 310501409123520. Its totient is φ = 27089011817984.

The previous prime is 102542132012519. The next prime is 102542132012521. The reversal of 102542132012520 is 25210231245201.

It is an interprime number because it is at equal distance from previous prime (102542132012519) and next prime (102542132012521).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (102542132012521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3993060837 + ... + 3993086516.

It is an arithmetic number, because the mean of its divisors is an integer number (4851584517555).

Almost surely, 2^{102542132012520} is an apocalyptic number.

102542132012520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102542132012520 is an abundant number, since it is smaller than the sum of its proper divisors (207959277111000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102542132012520 is a wasteful number, since it uses less digits than its factorization.

102542132012520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7986147474 (or 7986147470 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 102542132012520 its reverse (25210231245201), we get a palindrome (127752363257721).

The spelling of 102542132012520 in words is "one hundred two trillion, five hundred forty-two billion, one hundred thirty-two million, twelve thousand, five hundred twenty".