1141623250421 has 4 divisors (see below), whose sum is σ = 1141639838700. Its totient is φ = 1141606662144.

The previous prime is 1141623250409. The next prime is 1141623250423. The reversal of 1141623250421 is 1240523261411.

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 485383923025 + 656239327396 = 696695^2 + 810086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1141623250421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141623250423) 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, 8190476 + ... + 8328693.

It is an arithmetic number, because the mean of its divisors is an integer number (285409959675).

Almost surely, 2^{1141623250421} is an apocalyptic number.

It is an amenable number.

1141623250421 is a deficient number, since it is larger than the sum of its proper divisors (16588279).

1141623250421 is an equidigital number, since it uses as much as digits as its factorization.

1141623250421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16588278.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 1141623250421 in words is "one trillion, one hundred forty-one billion, six hundred twenty-three million, two hundred fifty thousand, four hundred twenty-one".