102124431 has 12 divisors (see below), whose sum is σ = 149932120. Its totient is φ = 66966480.

The previous prime is 102124427. The next prime is 102124459. The reversal of 102124431 is 134421201.

102124431 is a `hidden beast` number, since 10 + 212 + 443 + 1 = 666.

It is not a de Polignac number, because 102124431 - 2² = 102124427 is a prime.

It is a super-2 number, since 2×102124431² = 20858798814147522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102124931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92461 + ... + 93558.

Almost surely, 2^102124431 is an apocalyptic number.

102124431 is a deficient number, since it is larger than the sum of its proper divisors (47807689).

102124431 is a wasteful number, since it uses less digits than its factorization.

102124431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186086 (or 186083 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 102124431 is about 10105.6633132121. The cubic root of 102124431 is about 467.4227899219.

Adding to 102124431 its reverse (134421201), we get a palindrome (236545632).

It can be divided in two parts, 1021 and 24431, that added together give a palindrome (25452).

The spelling of 102124431 in words is "one hundred two million, one hundred twenty-four thousand, four hundred thirty-one".