2123805349 has 8 divisors (see below), whose sum is σ = 2221157952. Its totient is φ = 2026870560.

The previous prime is 2123805337. The next prime is 2123805361. The reversal of 2123805349 is 9435083212.

It is an interprime number because it is at equal distance from previous prime (2123805337) and next prime (2123805361).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2123805349 - 2⁷ = 2123805221 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 (2103805349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94032 + ... + 114409.

It is an arithmetic number, because the mean of its divisors is an integer number (277644744).

Almost surely, 2^2123805349 is an apocalyptic number.

It is an amenable number.

2123805349 is a deficient number, since it is larger than the sum of its proper divisors (97352603).

2123805349 is a wasteful number, since it uses less digits than its factorization.

2123805349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208907.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 2123805349 is about 46084.7626553506. The cubic root of 2123805349 is about 1285.3998259217.

The spelling of 2123805349 in words is "two billion, one hundred twenty-three million, eight hundred five thousand, three hundred forty-nine".