265243315202131 has 4 divisors (see below), whose sum is σ = 303135217373872. Its totient is φ = 227351413030392.

The previous prime is 265243315202119. The next prime is 265243315202189. The reversal of 265243315202131 is 131202513342562.

265243315202131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 265243315202131 - 2³³ = 265234725267539 is a prime.

It is a super-2 number, since 2×265243315202131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265243315206131) 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, 18945951085860 + ... + 18945951085873.

It is an arithmetic number, because the mean of its divisors is an integer number (75783804343468).

Almost surely, 2^{265243315202131} is an apocalyptic number.

265243315202131 is a deficient number, since it is larger than the sum of its proper divisors (37891902171741).

265243315202131 is an equidigital number, since it uses as much as digits as its factorization.

265243315202131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37891902171740.

The product of its (nonzero) digits is 259200, while the sum is 40.

Adding to 265243315202131 its reverse (131202513342562), we get a palindrome (396445828544693).

The spelling of 265243315202131 in words is "two hundred sixty-five trillion, two hundred forty-three billion, three hundred fifteen million, two hundred two thousand, one hundred thirty-one".