1421505552231 has 24 divisors (see below), whose sum is σ = 2082625534080. Its totient is φ = 934134339600.

The previous prime is 1421505552227. The next prime is 1421505552239. The reversal of 1421505552231 is 1322555051241.

1421505552231 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 50 + 55 + 522 + 31 = 666.

It is not a de Polignac number, because 1421505552231 - 2² = 1421505552227 is a prime.

It is a super-2 number, since 2×1421505552231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421505552239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2980060 + ... + 3423998.

It is an arithmetic number, because the mean of its divisors is an integer number (86776063920).

Almost surely, 2^{1421505552231} is an apocalyptic number.

1421505552231 is a deficient number, since it is larger than the sum of its proper divisors (661119981849).

1421505552231 is a wasteful number, since it uses less digits than its factorization.

1421505552231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449027 (or 449024 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 1421505552231 in words is "one trillion, four hundred twenty-one billion, five hundred five million, five hundred fifty-two thousand, two hundred thirty-one".