31122223010023 has 4 divisors (see below), whose sum is σ = 31126481085880. Its totient is φ = 31117964934168.

The previous prime is 31122223009963. The next prime is 31122223010077. The reversal of 31122223010023 is 32001032222113.

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

It is a cyclic number.

It is not a de Polignac number, because 31122223010023 - 2⁹ = 31122223009511 is a prime.

It is a super-4 number, since 4×31122223010023⁴ (a number of 55 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31122223009976 and 31122223010003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31122223010623) 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, 2129026965 + ... + 2129041582.

It is an arithmetic number, because the mean of its divisors is an integer number (7781620271470).

Almost surely, 2^{31122223010023} is an apocalyptic number.

31122223010023 is a deficient number, since it is larger than the sum of its proper divisors (4258075857).

31122223010023 is an equidigital number, since it uses as much as digits as its factorization.

31122223010023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4258075856.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31122223010023 its reverse (32001032222113), we get a palindrome (63123255232136).

The spelling of 31122223010023 in words is "thirty-one trillion, one hundred twenty-two billion, two hundred twenty-three million, ten thousand, twenty-three".