1231111022003 has 8 divisors (see below), whose sum is σ = 1273861442880. Its totient is φ = 1188380488960.

The previous prime is 1231111021981. The next prime is 1231111022041. The reversal of 1231111022003 is 3002201111321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231111022003 - 2³² = 1226816054707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231111021003) 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, 4845950 + ... + 5093667.

It is an arithmetic number, because the mean of its divisors is an integer number (159232680360).

Almost surely, 2^{1231111022003} is an apocalyptic number.

1231111022003 is a deficient number, since it is larger than the sum of its proper divisors (42750420877).

1231111022003 is an equidigital number, since it uses as much as digits as its factorization.

1231111022003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9943917.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1231111022003 its reverse (3002201111321), we get a palindrome (4233312133324).

The spelling of 1231111022003 in words is "one trillion, two hundred thirty-one billion, one hundred eleven million, twenty-two thousand, three".