1421187334931 has 16 divisors (see below), whose sum is σ = 1753650225600. Its totient is φ = 1121565253248.

The previous prime is 1421187334927. The next prime is 1421187334937. The reversal of 1421187334931 is 1394337811241.

It is a cyclic number.

It is not a de Polignac number, because 1421187334931 - 2² = 1421187334927 is a prime.

It is a super-2 number, since 2×1421187334931² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1421187334937) 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, 20038436 + ... + 20109233.

It is an arithmetic number, because the mean of its divisors is an integer number (109603139100).

Almost surely, 2^{1421187334931} is an apocalyptic number.

1421187334931 is a deficient number, since it is larger than the sum of its proper divisors (332462890669).

1421187334931 is a wasteful number, since it uses less digits than its factorization.

1421187334931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40148078.

The product of its digits is 435456, while the sum is 47.

The spelling of 1421187334931 in words is "one trillion, four hundred twenty-one billion, one hundred eighty-seven million, three hundred thirty-four thousand, nine hundred thirty-one".