102131420030 has 32 divisors (see below), whose sum is σ = 195338373984. Its totient is φ = 38313593856.

The previous prime is 102131420023. The next prime is 102131420033. The reversal of 102131420030 is 30024131201.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 102131419990 and 102131420008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102131420033) 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, 1013327 + ... + 1109546.

It is an arithmetic number, because the mean of its divisors is an integer number (6104324187).

Almost surely, 2^102131420030 is an apocalyptic number.

102131420030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102131420030 is a deficient number, since it is larger than the sum of its proper divisors (93206953954).

102131420030 is a wasteful number, since it uses less digits than its factorization.

102131420030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123180.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 102131420030 its reverse (30024131201), we get a palindrome (132155551231).

The spelling of 102131420030 in words is "one hundred two billion, one hundred thirty-one million, four hundred twenty thousand, thirty".