102023019 has 48 divisors (see below), whose sum is σ = 172972800. Its totient is φ = 56749248.

The previous prime is 102022993. The next prime is 102023021. The reversal of 102023019 is 910320201.

It is a happy number.

It is not a de Polignac number, because 102023019 - 2⁹ = 102022507 is a prime.

It is a super-2 number, since 2×102023019² = 20817392811748722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102022992 and 102023010.

It is not an unprimeable number, because it can be changed into a prime (102023059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 569872 + ... + 570050.

It is an arithmetic number, because the mean of its divisors is an integer number (3603600).

Almost surely, 2^102023019 is an apocalyptic number.

102023019 is a deficient number, since it is larger than the sum of its proper divisors (70949781).

102023019 is a wasteful number, since it uses less digits than its factorization.

102023019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 102023019 is about 10100.6444843881. The cubic root of 102023019 is about 467.2680180137.

The spelling of 102023019 in words is "one hundred two million, twenty-three thousand, nineteen".