31322233133 has 4 divisors (see below), whose sum is σ = 31609593180. Its totient is φ = 31034873088.

The previous prime is 31322233097. The next prime is 31322233141. The reversal of 31322233133 is 33133222313.

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 14380086889 + 16942146244 = 119917^2 + 130162^2 .

It is a cyclic number.

It is not a de Polignac number, because 31322233133 - 2⁶ = 31322233069 is a prime.

It is a super-3 number, since 3×31322233133³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322233633) 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, 143679860 + ... + 143680077.

It is an arithmetic number, because the mean of its divisors is an integer number (7902398295).

Almost surely, 2^31322233133 is an apocalyptic number.

It is an amenable number.

31322233133 is a deficient number, since it is larger than the sum of its proper divisors (287360047).

31322233133 is a wasteful number, since it uses less digits than its factorization.

31322233133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287360046.

The product of its digits is 5832, while the sum is 26.

Adding to 31322233133 its reverse (33133222313), we get a palindrome (64455455446).

The spelling of 31322233133 in words is "thirty-one billion, three hundred twenty-two million, two hundred thirty-three thousand, one hundred thirty-three".