3117221031 has 16 divisors (see below), whose sum is σ = 4403653344. Its totient is φ = 1954627584.

The previous prime is 3117221017. The next prime is 3117221033. The reversal of 3117221031 is 1301227113.

It is a happy number.

3117221031 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3117221031 - 2¹⁴ = 3117204647 is a prime.

It is a super-2 number, since 2×3117221031² = 19434133912217405922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3117220989 and 3117221007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3117221033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62311 + ... + 100583.

It is an arithmetic number, because the mean of its divisors is an integer number (275228334).

Almost surely, 2^3117221031 is an apocalyptic number.

3117221031 is a deficient number, since it is larger than the sum of its proper divisors (1286432313).

3117221031 is a wasteful number, since it uses less digits than its factorization.

3117221031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39890.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 3117221031 is about 55832.0788704845. The cubic root of 3117221031 is about 1460.7947494797.

Adding to 3117221031 its reverse (1301227113), we get a palindrome (4418448144).

The spelling of 3117221031 in words is "three billion, one hundred seventeen million, two hundred twenty-one thousand, thirty-one".