2123035552440 has 96 divisors (see below), whose sum is σ = 7527126063600. Its totient is φ = 514675284480.

The previous prime is 2123035552439. The next prime is 2123035552441. The reversal of 2123035552440 is 442555303212.

2123035552440 is a `hidden beast` number, since 2 + 1 + 2 + 30 + 35 + 552 + 4 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (2123035552439) and next prime (2123035552441).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2123035552395 and 2123035552404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123035552441) 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, 268056085 + ... + 268064004.

Almost surely, 2^{2123035552440} is an apocalyptic number.

2123035552440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123035552440 is an abundant number, since it is smaller than the sum of its proper divisors (5404090511160).

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

2123035552440 is a wasteful number, since it uses less digits than its factorization.

2123035552440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536120117 (or 536120110 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 2123035552440 in words is "two trillion, one hundred twenty-three billion, thirty-five million, five hundred fifty-two thousand, four hundred forty".