31211441031 has 16 divisors (see below), whose sum is σ = 42210713088. Its totient is φ = 20510028000.

The previous prime is 31211441017. The next prime is 31211441047. The reversal of 31211441031 is 13014411213.

It is not a de Polignac number, because 31211441031 - 2¹³ = 31211432839 is a prime.

It is a super-2 number, since 2×31211441031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31211440989 and 31211441007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31211461031) 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, 1144606 + ... + 1171556.

It is an arithmetic number, because the mean of its divisors is an integer number (2638169568).

Almost surely, 2^31211441031 is an apocalyptic number.

31211441031 is a deficient number, since it is larger than the sum of its proper divisors (10999272057).

31211441031 is a wasteful number, since it uses less digits than its factorization.

31211441031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32462.

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

Adding to 31211441031 its reverse (13014411213), we get a palindrome (44225852244).

The spelling of 31211441031 in words is "thirty-one billion, two hundred eleven million, four hundred forty-one thousand, thirty-one".