2531213141 has 2 divisors, whose sum is σ = 2531213142. Its totient is φ = 2531213140.

The previous prime is 2531213137. The next prime is 2531213173. The reversal of 2531213141 is 1413121352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2507105041 + 24108100 = 50071^2 + 4910^2 .

It is a cyclic number.

It is not a de Polignac number, because 2531213141 - 2² = 2531213137 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2531213131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265606570 + 1265606571.

It is an arithmetic number, because the mean of its divisors is an integer number (1265606571).

Almost surely, 2^2531213141 is an apocalyptic number.

It is an amenable number.

2531213141 is a deficient number, since it is larger than the sum of its proper divisors (1).

2531213141 is an equidigital number, since it uses as much as digits as its factorization.

2531213141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

The square root of 2531213141 is about 50311.1631847247. The cubic root of 2531213141 is about 1362.8338295552.

Adding to 2531213141 its reverse (1413121352), we get a palindrome (3944334493).

The spelling of 2531213141 in words is "two billion, five hundred thirty-one million, two hundred thirteen thousand, one hundred forty-one".