2123353507 has 12 divisors (see below), whose sum is σ = 2338673976. Its totient is φ = 1911775040.

The previous prime is 2123353487. The next prime is 2123353511. The reversal of 2123353507 is 7053533212.

It is a de Polignac number, because none of the positive numbers 2^k-2123353507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123353517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1623948 + ... + 1625254.

It is an arithmetic number, because the mean of its divisors is an integer number (194889498).

Almost surely, 2^2123353507 is an apocalyptic number.

2123353507 is a deficient number, since it is larger than the sum of its proper divisors (215320469).

2123353507 is an equidigital number, since it uses as much as digits as its factorization.

2123353507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738 (or 1431 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 2123353507 is about 46079.8601017842. The cubic root of 2123353507 is about 1285.3086626988.

Adding to 2123353507 its reverse (7053533212), we get a palindrome (9176886719).

The spelling of 2123353507 in words is "two billion, one hundred twenty-three million, three hundred fifty-three thousand, five hundred seven".