20125443219 has 24 divisors (see below), whose sum is σ = 31642592400. Its totient is φ = 11342709504.

The previous prime is 20125443197. The next prime is 20125443241. The reversal of 20125443219 is 91234452102.

It is an interprime number because it is at equal distance from previous prime (20125443197) and next prime (20125443241).

It is not a de Polignac number, because 20125443219 - 2²⁹ = 19588572307 is a prime.

It is a super-2 number, since 2×20125443219² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20125443219.

It is not an unprimeable number, because it can be changed into a prime (20125444219) 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, 926994 + ... + 948455.

It is an arithmetic number, because the mean of its divisors is an integer number (1318441350).

Almost surely, 2^20125443219 is an apocalyptic number.

20125443219 is a deficient number, since it is larger than the sum of its proper divisors (11517149181).

20125443219 is a wasteful number, since it uses less digits than its factorization.

20125443219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875539 (or 1875532 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 20125443219 in words is "twenty billion, one hundred twenty-five million, four hundred forty-three thousand, two hundred nineteen".