102030131121 has 16 divisors (see below), whose sum is σ = 139617027264. Its totient is φ = 66241050624.

The previous prime is 102030131069. The next prime is 102030131129. The reversal of 102030131121 is 121131030201.

It is a happy number.

It is not a de Polignac number, because 102030131121 - 2¹⁸ = 102029868977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102030131121.

It is not an unprimeable number, because it can be changed into a prime (102030131129) 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, 1130016 + ... + 1216961.

It is an arithmetic number, because the mean of its divisors is an integer number (8726064204).

Almost surely, 2^102030131121 is an apocalyptic number.

It is an amenable number.

102030131121 is a deficient number, since it is larger than the sum of its proper divisors (37586896143).

102030131121 is a wasteful number, since it uses less digits than its factorization.

102030131121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347360.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 102030131121 its reverse (121131030201), we get a palindrome (223161161322).

The spelling of 102030131121 in words is "one hundred two billion, thirty million, one hundred thirty-one thousand, one hundred twenty-one".