31541241133 has 2 divisors, whose sum is σ = 31541241134. Its totient is φ = 31541241132.

The previous prime is 31541241103. The next prime is 31541241157. The reversal of 31541241133 is 33114214513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30160226889 + 1381014244 = 173667^2 + 37162^2 .

It is a cyclic number.

It is not a de Polignac number, because 31541241133 - 2¹³ = 31541232941 is a prime.

It is a super-2 number, since 2×31541241133² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31541241103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15770620566 + 15770620567.

It is an arithmetic number, because the mean of its divisors is an integer number (15770620567).

Almost surely, 2^31541241133 is an apocalyptic number.

It is an amenable number.

31541241133 is a deficient number, since it is larger than the sum of its proper divisors (1).

31541241133 is an equidigital number, since it uses as much as digits as its factorization.

31541241133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

Adding to 31541241133 its reverse (33114214513), we get a palindrome (64655455646).

The spelling of 31541241133 in words is "thirty-one billion, five hundred forty-one million, two hundred forty-one thousand, one hundred thirty-three".