102331121 has 4 divisors (see below), whose sum is σ = 104827044. Its totient is φ = 99835200.

The previous prime is 102331091. The next prime is 102331127. The reversal of 102331121 is 121133201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48455521 + 53875600 = 6961^2 + 7340^2 .

It is a cyclic number.

It is not a de Polignac number, because 102331121 - 2²² = 98136817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102331096 and 102331105.

It is not an unprimeable number, because it can be changed into a prime (102331127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1247900 + ... + 1247981.

It is an arithmetic number, because the mean of its divisors is an integer number (26206761).

Almost surely, 2^102331121 is an apocalyptic number.

It is an amenable number.

102331121 is a deficient number, since it is larger than the sum of its proper divisors (2495923).

102331121 is an equidigital number, since it uses as much as digits as its factorization.

102331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495922.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 102331121 is about 10115.8845881119. The cubic root of 102331121 is about 467.7379169722.

Adding to 102331121 its reverse (121133201), we get a palindrome (223464322).

The spelling of 102331121 in words is "one hundred two million, three hundred thirty-one thousand, one hundred twenty-one".