31142441741 has 4 divisors (see below), whose sum is σ = 31369758972. Its totient is φ = 30915124512.

The previous prime is 31142441719. The next prime is 31142441789. The reversal of 31142441741 is 14714424113.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24078039241 + 7064402500 = 155171^2 + 84050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31142441741 is a prime.

It is a super-2 number, since 2×31142441741² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31142441698 and 31142441707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31142441441) 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, 113658410 + ... + 113658683.

It is an arithmetic number, because the mean of its divisors is an integer number (7842439743).

Almost surely, 2^31142441741 is an apocalyptic number.

It is an amenable number.

31142441741 is a deficient number, since it is larger than the sum of its proper divisors (227317231).

31142441741 is a wasteful number, since it uses less digits than its factorization.

31142441741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227317230.

The product of its digits is 10752, while the sum is 32.

Adding to 31142441741 its reverse (14714424113), we get a palindrome (45856865854).

The spelling of 31142441741 in words is "thirty-one billion, one hundred forty-two million, four hundred forty-one thousand, seven hundred forty-one".