102102331 has 4 divisors (see below), whose sum is σ = 103540464. Its totient is φ = 100664200.

The previous prime is 102102307. The next prime is 102102337. The reversal of 102102331 is 133201201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133201201 = 7 ⋅19028743.

It is a cyclic number.

It is not a de Polignac number, because 102102331 - 2¹⁵ = 102069563 is a prime.

It is a super-2 number, since 2×102102331² = 20849771991267122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102102337) 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, 718960 + ... + 719101.

It is an arithmetic number, because the mean of its divisors is an integer number (25885116).

Almost surely, 2^102102331 is an apocalyptic number.

102102331 is a deficient number, since it is larger than the sum of its proper divisors (1438133).

102102331 is an equidigital number, since it uses as much as digits as its factorization.

102102331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438132.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 102102331 is about 10104.5698077652. The cubic root of 102102331 is about 467.3890703088.

Adding to 102102331 its reverse (133201201), we get a palindrome (235303532).

The spelling of 102102331 in words is "one hundred two million, one hundred two thousand, three hundred thirty-one".