102001010 has 8 divisors (see below), whose sum is σ = 183601836. Its totient is φ = 40800400.

The previous prime is 102001007. The next prime is 102001027. The reversal of 102001010 is 10100201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 88303609 + 13697401 = 9397^2 + 3701^2 .

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

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

It is a junction number, because it is equal to n+sod(n) for n = 102000985 and 102001003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5100041 + ... + 5100060.

Almost surely, 2^102001010 is an apocalyptic number.

102001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102001010 is a deficient number, since it is larger than the sum of its proper divisors (81600826).

102001010 is a wasteful number, since it uses less digits than its factorization.

102001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10200108.

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

The square root of 102001010 is about 10099.5549406892. The cubic root of 102001010 is about 467.2344150043.

Adding to 102001010 its reverse (10100201), we get a palindrome (112101211).

The spelling of 102001010 in words is "one hundred two million, one thousand, ten".