1231122020230 has 16 divisors (see below), whose sum is σ = 2238865201440. Its totient is φ = 487372015872.

The previous prime is 1231122020207. The next prime is 1231122020231. The reversal of 1231122020230 is 320202211321.

It is a super-2 number, since 2×1231122020230² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231122020198 and 1231122020207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231122020231) 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, 634598010 + ... + 634599949.

It is an arithmetic number, because the mean of its divisors is an integer number (139929075090).

Almost surely, 2^{1231122020230} is an apocalyptic number.

1231122020230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231122020230 is a deficient number, since it is larger than the sum of its proper divisors (1007743181210).

1231122020230 is a wasteful number, since it uses less digits than its factorization.

1231122020230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269198063.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1231122020230 its reverse (320202211321), we get a palindrome (1551324231551).

The spelling of 1231122020230 in words is "one trillion, two hundred thirty-one billion, one hundred twenty-two million, twenty thousand, two hundred thirty".