1231045212101 has 8 divisors (see below), whose sum is σ = 1233155601600. Its totient is φ = 1228935007872.

The previous prime is 1231045212077. The next prime is 1231045212127. The reversal of 1231045212101 is 1012125401321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231045212101 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 (1231045212151) 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, 22802726 + ... + 22856648.

It is an arithmetic number, because the mean of its divisors is an integer number (154144450200).

Almost surely, 2^{1231045212101} is an apocalyptic number.

It is an amenable number.

1231045212101 is a deficient number, since it is larger than the sum of its proper divisors (2110389499).

1231045212101 is an equidigital number, since it uses as much as digits as its factorization.

1231045212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92635.

The product of its (nonzero) digits is 480, while the sum is 23.

The spelling of 1231045212101 in words is "one trillion, two hundred thirty-one billion, forty-five million, two hundred twelve thousand, one hundred one".