1331442100231 has 4 divisors (see below), whose sum is σ = 1409762223792. Its totient is φ = 1253121976672.

The previous prime is 1331442100217. The next prime is 1331442100249. The reversal of 1331442100231 is 1320012441331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1331442100231 - 2⁹ = 1331442099719 is a prime.

It is a super-2 number, since 2×1331442100231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331442100196 and 1331442100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331442100271) 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, 39160061755 + ... + 39160061788.

It is an arithmetic number, because the mean of its divisors is an integer number (352440555948).

Almost surely, 2^{1331442100231} is an apocalyptic number.

1331442100231 is a deficient number, since it is larger than the sum of its proper divisors (78320123561).

1331442100231 is an equidigital number, since it uses as much as digits as its factorization.

1331442100231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78320123560.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1331442100231 its reverse (1320012441331), we get a palindrome (2651454541562).

The spelling of 1331442100231 in words is "one trillion, three hundred thirty-one billion, four hundred forty-two million, one hundred thousand, two hundred thirty-one".