102502030019 has 4 divisors (see below), whose sum is σ = 102515351400. Its totient is φ = 102488708640.

The previous prime is 102502030003. The next prime is 102502030087. The reversal of 102502030019 is 910030205201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102502030019 - 2⁴ = 102502030003 is a prime.

It is a super-2 number, since 2×102502030019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102502029976 and 102502030003.

It is not an unprimeable number, because it can be changed into a prime (102502035019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6649142 + ... + 6664539.

It is an arithmetic number, because the mean of its divisors is an integer number (25628837850).

Almost surely, 2^102502030019 is an apocalyptic number.

102502030019 is a deficient number, since it is larger than the sum of its proper divisors (13321381).

102502030019 is an equidigital number, since it uses as much as digits as its factorization.

102502030019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13321380.

The product of its (nonzero) digits is 540, while the sum is 23.

The spelling of 102502030019 in words is "one hundred two billion, five hundred two million, thirty thousand, nineteen".