2103021099 has 24 divisors (see below), whose sum is σ = 3199584960. Its totient is φ = 1327389552.

The previous prime is 2103021073. The next prime is 2103021113. The reversal of 2103021099 is 9901203012.

It is not a de Polignac number, because 2103021099 - 2²⁴ = 2086243883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2103021199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 380812 + ... + 386294.

It is an arithmetic number, because the mean of its divisors is an integer number (133316040).

Almost surely, 2^2103021099 is an apocalyptic number.

2103021099 is a deficient number, since it is larger than the sum of its proper divisors (1096563861).

2103021099 is a wasteful number, since it uses less digits than its factorization.

2103021099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7751 (or 7748 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 2103021099 is about 45858.7079953197. The cubic root of 2103021099 is about 1281.1929590660.

The spelling of 2103021099 in words is "two billion, one hundred three million, twenty-one thousand, ninety-nine".