1231012144101 has 4 divisors (see below), whose sum is σ = 1641349525472. Its totient is φ = 820674762732.

The previous prime is 1231012144097. The next prime is 1231012144129. The reversal of 1231012144101 is 1014412101321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1231012144101 - 2² = 1231012144097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231012144181) 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, 205168690681 + ... + 205168690686.

It is an arithmetic number, because the mean of its divisors is an integer number (410337381368).

Almost surely, 2^{1231012144101} is an apocalyptic number.

It is an amenable number.

1231012144101 is a deficient number, since it is larger than the sum of its proper divisors (410337381371).

1231012144101 is an equidigital number, since it uses as much as digits as its factorization.

1231012144101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410337381370.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 1231012144101 its reverse (1014412101321), we get a palindrome (2245424245422).

The spelling of 1231012144101 in words is "one trillion, two hundred thirty-one billion, twelve million, one hundred forty-four thousand, one hundred one".