1416431257121 has 4 divisors (see below), whose sum is σ = 1499750742852. Its totient is φ = 1333111771392.

The previous prime is 1416431257103. The next prime is 1416431257133. The reversal of 1416431257121 is 1217521346141.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1033548756496 + 382882500625 = 1016636^2 + 618775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1416431257121 - 2³⁸ = 1141553350177 is a prime.

It is a super-4 number, since 4×1416431257121⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1416431251121) 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, 41659742840 + ... + 41659742873.

It is an arithmetic number, because the mean of its divisors is an integer number (374937685713).

Almost surely, 2^{1416431257121} is an apocalyptic number.

It is an amenable number.

1416431257121 is a deficient number, since it is larger than the sum of its proper divisors (83319485731).

1416431257121 is an equidigital number, since it uses as much as digits as its factorization.

1416431257121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83319485730.

The product of its digits is 40320, while the sum is 38.

The spelling of 1416431257121 in words is "one trillion, four hundred sixteen billion, four hundred thirty-one million, two hundred fifty-seven thousand, one hundred twenty-one".