231120022 has 16 divisors (see below), whose sum is σ = 396446112. Its totient is φ = 98991360.

The previous prime is 231120013. The next prime is 231120023. The reversal of 231120022 is 220021132.

It is a junction number, because it is equal to n+sod(n) for n = 231119984 and 231120011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231120023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25168 + ... + 33100.

It is an arithmetic number, because the mean of its divisors is an integer number (24777882).

Almost surely, 2^231120022 is an apocalyptic number.

231120022 is a deficient number, since it is larger than the sum of its proper divisors (165326090).

231120022 is a wasteful number, since it uses less digits than its factorization.

231120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10023.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 231120022 is about 15202.6320747428. The cubic root of 231120022 is about 613.6854925338.

Adding to 231120022 its reverse (220021132), we get a palindrome (451141154).

The spelling of 231120022 in words is "two hundred thirty-one million, one hundred twenty thousand, twenty-two".