13900403034221 has 16 divisors (see below), whose sum is σ = 15171147002880. Its totient is φ = 12630838630080.

The previous prime is 13900403034191. The next prime is 13900403034247. The reversal of 13900403034221 is 12243030400931.

It is not a de Polignac number, because 13900403034221 - 2⁶ = 13900403034157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13900403030221) 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, 353149940 + ... + 353189298.

It is an arithmetic number, because the mean of its divisors is an integer number (948196687680).

Almost surely, 2^{13900403034221} is an apocalyptic number.

13900403034221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13900403034221 is a deficient number, since it is larger than the sum of its proper divisors (1270743968659).

13900403034221 is a wasteful number, since it uses less digits than its factorization.

13900403034221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53524.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 13900403034221 in words is "thirteen trillion, nine hundred billion, four hundred three million, thirty-four thousand, two hundred twenty-one".