31481050041 has 135 divisors (see below), whose sum is σ = 57157158383. Its totient is φ = 16692520320.

The previous prime is 31481050039. The next prime is 31481050043. The reversal of 31481050041 is 14005018413.

It is a happy number.

The square root of 31481050041 is 177429.

It is a perfect power (a square), and thus also a powerful number.

31481050041 is a `hidden beast` number, since 3 + 148 + 10 + 500 + 4 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (31481050039) and next prime (31481050043).

It can be written as a sum of positive squares in only one way, i.e., 24509468025 + 6971582016 = 156555^2 + 83496^2 .

It is not a de Polignac number, because 31481050041 - 2¹ = 31481050039 is a prime.

It is a super-2 number, since 2×31481050041² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31481049987 and 31481050014.

It is not an unprimeable number, because it can be changed into a prime (31481050043) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 443395036 + ... + 443395106.

Almost surely, 2^31481050041 is an apocalyptic number.

31481050041 is the 177429-th square number.

31481050041 is the 88715-th centered octagonal number.

It is an amenable number.

31481050041 is a deficient number, since it is larger than the sum of its proper divisors (25676108342).

31481050041 is an frugal number, since it uses more digits than its factorization.

31481050041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 31481050041 its reverse (14005018413), we get a palindrome (45486068454).

The spelling of 31481050041 in words is "thirty-one billion, four hundred eighty-one million, fifty thousand, forty-one".