14991443021141 has 4 divisors (see below), whose sum is σ = 14991451855872. Its totient is φ = 14991434186412.

The previous prime is 14991443021057. The next prime is 14991443021207. The reversal of 14991443021141 is 14112034419941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 14991443021141 - 2¹⁸ = 14991442758997 is a prime.

It is a super-2 number, since 2×14991443021141² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14991443021092 and 14991443021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14991443021941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980951 + ... + 5562836.

It is an arithmetic number, because the mean of its divisors is an integer number (3747862963968).

Almost surely, 2^{14991443021141} is an apocalyptic number.

It is an amenable number.

14991443021141 is a deficient number, since it is larger than the sum of its proper divisors (8834731).

14991443021141 is an equidigital number, since it uses as much as digits as its factorization.

14991443021141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8834730.

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 14991443021141 in words is "fourteen trillion, nine hundred ninety-one billion, four hundred forty-three million, twenty-one thousand, one hundred forty-one".