2121362375 has 32 divisors (see below), whose sum is σ = 2931372288. Its totient is φ = 1519716000.

The previous prime is 2121362371. The next prime is 2121362377. The reversal of 2121362375 is 5732631212.

It is not a de Polignac number, because 2121362375 - 2² = 2121362371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121362371) 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, 80612 + ... + 103638.

It is an arithmetic number, because the mean of its divisors is an integer number (91605384).

Almost surely, 2^2121362375 is an apocalyptic number.

2121362375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2121362375 is a deficient number, since it is larger than the sum of its proper divisors (810009913).

2121362375 is a wasteful number, since it uses less digits than its factorization.

2121362375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23120 (or 23110 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 2121362375 is about 46058.2498039168. The cubic root of 2121362375 is about 1284.9067796133.

Adding to 2121362375 its reverse (5732631212), we get a palindrome (7853993587).

The spelling of 2121362375 in words is "two billion, one hundred twenty-one million, three hundred sixty-two thousand, three hundred seventy-five".