50231131 has 2 divisors, whose sum is σ = 50231132. Its totient is φ = 50231130.

The previous prime is 50231119. The next prime is 50231147. The reversal of 50231131 is 13113205.

It is an a-pointer prime, because the next prime (50231147) can be obtained adding 50231131 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50231131 - 2¹⁷ = 50100059 is a prime.

It is a super-2 number, since 2×50231131² = 5046333043078322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50231101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25115565 + 25115566.

It is an arithmetic number, because the mean of its divisors is an integer number (25115566).

Almost surely, 2^50231131 is an apocalyptic number.

50231131 is a deficient number, since it is larger than the sum of its proper divisors (1).

50231131 is an equidigital number, since it uses as much as digits as its factorization.

50231131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 50231131 is about 7087.3923977723. The cubic root of 50231131 is about 368.9699399969.

Adding to 50231131 its reverse (13113205), we get a palindrome (63344336).

The spelling of 50231131 in words is "fifty million, two hundred thirty-one thousand, one hundred thirty-one".