102231099 has 8 divisors (see below), whose sum is σ = 151453520. Its totient is φ = 68154048.

The previous prime is 102231097. The next prime is 102231109. The reversal of 102231099 is 990132201.

It is not a de Polignac number, because 102231099 - 2¹ = 102231097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3786337 = 102231099 / (1 + 0 + 2 + 2 + 3 + 1 + 0 + 9 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102231097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893142 + ... + 1893195.

It is an arithmetic number, because the mean of its divisors is an integer number (18931690).

Almost surely, 2^102231099 is an apocalyptic number.

102231099 is a deficient number, since it is larger than the sum of its proper divisors (49222421).

102231099 is an equidigital number, since it uses as much as digits as its factorization.

102231099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3786346 (or 3786340 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 102231099 is about 10110.9395705839. The cubic root of 102231099 is about 467.5854728524.

The spelling of 102231099 in words is "one hundred two million, two hundred thirty-one thousand, ninety-nine".