231211011300122 has 16 divisors (see below), whose sum is σ = 396380331350592. Its totient is φ = 99085783991040.

The previous prime is 231211011300121. The next prime is 231211011300167. The reversal of 231211011300122 is 221003110112132.

It is a junction number, because it is equal to n+sod(n) for n = 231211011300094 and 231211011300103.

It is not an unprimeable number, because it can be changed into a prime (231211011300121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387142904 + ... + 387739667.

It is an arithmetic number, because the mean of its divisors is an integer number (24773770709412).

Almost surely, 2^{231211011300122} is an apocalyptic number.

231211011300122 is a deficient number, since it is larger than the sum of its proper divisors (165169320050470).

231211011300122 is a wasteful number, since it uses less digits than its factorization.

231211011300122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774903893.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 231211011300122 its reverse (221003110112132), we get a palindrome (452214121412254).

The spelling of 231211011300122 in words is "two hundred thirty-one trillion, two hundred eleven billion, eleven million, three hundred thousand, one hundred twenty-two".