100402124 has 6 divisors (see below), whose sum is σ = 175703724. Its totient is φ = 50201060.

The previous prime is 100402123. The next prime is 100402139. The reversal of 100402124 is 421204001.

It is a super-2 number, since 2×100402124² = 20161173007422752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100402099 and 100402108.

It is not an unprimeable number, because it can be changed into a prime (100402123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12550262 + ... + 12550269.

It is an arithmetic number, because the mean of its divisors is an integer number (29283954).

Almost surely, 2^100402124 is an apocalyptic number.

It is an amenable number.

100402124 is a deficient number, since it is larger than the sum of its proper divisors (75301600).

100402124 is a wasteful number, since it uses less digits than its factorization.

100402124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25100535 (or 25100533 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 100402124 is about 10020.0860275748. The cubic root of 100402124 is about 464.7802160175.

Adding to 100402124 its reverse (421204001), we get a palindrome (521606125).

The spelling of 100402124 in words is "one hundred million, four hundred two thousand, one hundred twenty-four".