102131098 has 8 divisors (see below), whose sum is σ = 158479380. Its totient is φ = 49304640.

The previous prime is 102131093. The next prime is 102131111. The reversal of 102131098 is 890131201.

It can be written as a sum of positive squares in 2 ways, for example, as 99860049 + 2271049 = 9993^2 + 1507^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×102131098² = 20861522357371208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102131093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 880383 + ... + 880498.

Almost surely, 2^102131098 is an apocalyptic number.

102131098 is a deficient number, since it is larger than the sum of its proper divisors (56348282).

102131098 is a wasteful number, since it uses less digits than its factorization.

102131098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760912.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 102131098 is about 10105.9931723705. The cubic root of 102131098 is about 467.4329613043.

Adding to 102131098 its reverse (890131201), we get a palindrome (992262299).

It can be divided in two parts, 10213 and 1098, that added together give a palindrome (11311).

The spelling of 102131098 in words is "one hundred two million, one hundred thirty-one thousand, ninety-eight".