2125123040 has 24 divisors (see below), whose sum is σ = 5020603560. Its totient is φ = 850049152.

The previous prime is 2125123037. The next prime is 2125123069. The reversal of 2125123040 is 403215212.

It is a super-2 number, since 2×2125123040² = 9032295870277683200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6640850 + ... + 6641169.

It is an arithmetic number, because the mean of its divisors is an integer number (209191815).

Almost surely, 2^2125123040 is an apocalyptic number.

2125123040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2125123040 is an abundant number, since it is smaller than the sum of its proper divisors (2895480520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2125123040 is a wasteful number, since it uses less digits than its factorization.

2125123040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13282034 (or 13282026 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2125123040 is about 46099.0568233234. The cubic root of 2125123040 is about 1285.6656082217.

Adding to 2125123040 its reverse (403215212), we get a palindrome (2528338252).

The spelling of 2125123040 in words is "two billion, one hundred twenty-five million, one hundred twenty-three thousand, forty".