31441121031 has 16 divisors (see below), whose sum is σ = 42179577440. Its totient is φ = 20831852160.

The previous prime is 31441121027. The next prime is 31441121039. The reversal of 31441121031 is 13012114413.

It is not a de Polignac number, because 31441121031 - 2² = 31441121027 is a prime.

It is a super-2 number, since 2×31441121031² (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 = 31441120989 and 31441121007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31441121039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 888921 + ... + 923613.

It is an arithmetic number, because the mean of its divisors is an integer number (2636223590).

Almost surely, 2^31441121031 is an apocalyptic number.

31441121031 is a deficient number, since it is larger than the sum of its proper divisors (10738456409).

31441121031 is a wasteful number, since it uses less digits than its factorization.

31441121031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36546.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 31441121031 its reverse (13012114413), we get a palindrome (44453235444).

The spelling of 31441121031 in words is "thirty-one billion, four hundred forty-one million, one hundred twenty-one thousand, thirty-one".