1002101099 has 12 divisors (see below), whose sum is σ = 1050147000. Its totient is φ = 956169984.

The previous prime is 1002101077. The next prime is 1002101123. The reversal of 1002101099 is 9901012001.

It is not a de Polignac number, because 1002101099 - 2¹² = 1002097003 is a prime.

It is a super-2 number, since 2×1002101099² = 2008413225234015602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002101069) 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, 235412 + ... + 239630.

It is an arithmetic number, because the mean of its divisors is an integer number (87512250).

Almost surely, 2^1002101099 is an apocalyptic number.

1002101099 is a deficient number, since it is larger than the sum of its proper divisors (48045901).

1002101099 is an equidigital number, since it uses as much as digits as its factorization.

1002101099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4714 (or 4691 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 1002101099 is about 31655.9804618337. The cubic root of 1002101099 is about 1000.6998763921.

The spelling of 1002101099 in words is "one billion, two million, one hundred one thousand, ninety-nine".