2123457347 has 32 divisors (see below), whose sum is σ = 2507070720. Its totient is φ = 1777749120.

The previous prime is 2123457337. The next prime is 2123457367. The reversal of 2123457347 is 7437543212.

It is a cyclic number.

It is not a de Polignac number, because 2123457347 - 2¹⁰ = 2123456323 is a prime.

It is a super-2 number, since 2×2123457347² = 9018142209056556818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2123457347.

It is not an unprimeable number, because it can be changed into a prime (2123457337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2488973 + ... + 2489825.

It is an arithmetic number, because the mean of its divisors is an integer number (78345960).

Almost surely, 2^2123457347 is an apocalyptic number.

2123457347 is a deficient number, since it is larger than the sum of its proper divisors (383613373).

2123457347 is a wasteful number, since it uses less digits than its factorization.

2123457347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203.

The product of its digits is 141120, while the sum is 38.

The square root of 2123457347 is about 46080.9868275409. The cubic root of 2123457347 is about 1285.3296145054.

The spelling of 2123457347 in words is "two billion, one hundred twenty-three million, four hundred fifty-seven thousand, three hundred forty-seven".