102010399049 has 16 divisors (see below), whose sum is σ = 115664062080. Its totient is φ = 89188387200.

The previous prime is 102010399039. The next prime is 102010399063. The reversal of 102010399049 is 940993010201.

It is a cyclic number.

It is not a de Polignac number, because 102010399049 - 2³² = 97715431753 is a prime.

It is a super-2 number, since 2×102010399049² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102010399039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1181189 + ... + 1264605.

It is an arithmetic number, because the mean of its divisors is an integer number (7229003880).

Almost surely, 2^102010399049 is an apocalyptic number.

102010399049 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

102010399049 is a deficient number, since it is larger than the sum of its proper divisors (13653663031).

102010399049 is a wasteful number, since it uses less digits than its factorization.

102010399049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88400.

The product of its (nonzero) digits is 17496, while the sum is 38.

The spelling of 102010399049 in words is "one hundred two billion, ten million, three hundred ninety-nine thousand, forty-nine".