2143990012349 has 16 divisors (see below), whose sum is σ = 2231472499200. Its totient is φ = 2057413997184.

The previous prime is 2143990012337. The next prime is 2143990012363. The reversal of 2143990012349 is 9432100993412.

It is a cyclic number.

It is not a de Polignac number, because 2143990012349 - 2²⁴ = 2143973235133 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 (2143990012949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49178249 + ... + 49221825.

It is an arithmetic number, because the mean of its divisors is an integer number (139467031200).

Almost surely, 2^{2143990012349} is an apocalyptic number.

2143990012349 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2143990012349 is a deficient number, since it is larger than the sum of its proper divisors (87482486851).

2143990012349 is a wasteful number, since it uses less digits than its factorization.

2143990012349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53932.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 2143990012349 in words is "two trillion, one hundred forty-three billion, nine hundred ninety million, twelve thousand, three hundred forty-nine".