1000102100 has 36 divisors (see below), whose sum is σ = 2264584224. Its totient is φ = 382646880.

The previous prime is 1000102063. The next prime is 1000102121. The reversal of 1000102100 is 12010001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215114 + ... + 219713.

Almost surely, 2^1000102100 is an apocalyptic number.

1000102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000102100 is an abundant number, since it is smaller than the sum of its proper divisors (1264482124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000102100 is a wasteful number, since it uses less digits than its factorization.

1000102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434864 (or 434857 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 1000102100 is about 31624.3909032253. The cubic root of 1000102100 is about 1000.0340321751.

Adding to 1000102100 its reverse (12010001), we get a palindrome (1012112101).

The spelling of 1000102100 in words is "one billion, one hundred two thousand, one hundred".