31540452341 has 2 divisors, whose sum is σ = 31540452342. Its totient is φ = 31540452340.

The previous prime is 31540452337. The next prime is 31540452367. The reversal of 31540452341 is 14325404513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25710519025 + 5829933316 = 160345^2 + 76354^2 .

It is a cyclic number.

It is not a de Polignac number, because 31540452341 - 2² = 31540452337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31540452298 and 31540452307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31540452301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15770226170 + 15770226171.

It is an arithmetic number, because the mean of its divisors is an integer number (15770226171).

Almost surely, 2^31540452341 is an apocalyptic number.

It is an amenable number.

31540452341 is a deficient number, since it is larger than the sum of its proper divisors (1).

31540452341 is an equidigital number, since it uses as much as digits as its factorization.

31540452341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 31540452341 its reverse (14325404513), we get a palindrome (45865856854).

The spelling of 31540452341 in words is "thirty-one billion, five hundred forty million, four hundred fifty-two thousand, three hundred forty-one".