31261542122441 has 8 divisors (see below), whose sum is σ = 31321770558024. Its totient is φ = 31201322705280.

The previous prime is 31261542122423. The next prime is 31261542122467. The reversal of 31261542122441 is 14422124516213.

It can be written as a sum of positive squares in 4 ways, for example, as 581253760000 + 30680288362441 = 762400^2 + 5538979^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31261542122441 - 2¹⁴ = 31261542106057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31261542122395 and 31261542122404.

It is not an unprimeable number, because it can be changed into a prime (31261542122411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4705565 + ... + 9201381.

It is an arithmetic number, because the mean of its divisors is an integer number (3915221319753).

Almost surely, 2^{31261542122441} is an apocalyptic number.

It is an amenable number.

31261542122441 is a deficient number, since it is larger than the sum of its proper divisors (60228435583).

31261542122441 is a wasteful number, since it uses less digits than its factorization.

31261542122441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509211.

The product of its digits is 92160, while the sum is 38.

Adding to 31261542122441 its reverse (14422124516213), we get a palindrome (45683666638654).

The spelling of 31261542122441 in words is "thirty-one trillion, two hundred sixty-one billion, five hundred forty-two million, one hundred twenty-two thousand, four hundred forty-one".