402231144131 has 4 divisors (see below), whose sum is σ = 402233379000. Its totient is φ = 402228909264.

The previous prime is 402231144113. The next prime is 402231144143. The reversal of 402231144131 is 131441132204.

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

It is a cyclic number.

It is not a de Polignac number, because 402231144131 - 2⁶ = 402231144067 is a prime.

It is a super-2 number, since 2×402231144131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402231144131.

It is not an unprimeable number, because it can be changed into a prime (402231144431) 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, 821306 + ... + 1216143.

It is an arithmetic number, because the mean of its divisors is an integer number (100558344750).

Almost surely, 2^402231144131 is an apocalyptic number.

402231144131 is a deficient number, since it is larger than the sum of its proper divisors (2234869).

402231144131 is a wasteful number, since it uses less digits than its factorization.

402231144131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234868.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 402231144131 its reverse (131441132204), we get a palindrome (533672276335).

The spelling of 402231144131 in words is "four hundred two billion, two hundred thirty-one million, one hundred forty-four thousand, one hundred thirty-one".