1223431213141 has 4 divisors (see below), whose sum is σ = 1225222474752. Its totient is φ = 1221639951532.

The previous prime is 1223431213087. The next prime is 1223431213231. The reversal of 1223431213141 is 1413121343221.

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 a cyclic number.

It is not a de Polignac number, because 1223431213141 - 2¹³ = 1223431204949 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 (1223431213441) 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, 895629781 + ... + 895631146.

It is an arithmetic number, because the mean of its divisors is an integer number (306305618688).

Almost surely, 2^{1223431213141} is an apocalyptic number.

It is an amenable number.

1223431213141 is a deficient number, since it is larger than the sum of its proper divisors (1791261611).

1223431213141 is an equidigital number, since it uses as much as digits as its factorization.

1223431213141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791261610.

The product of its digits is 3456, while the sum is 28.

Adding to 1223431213141 its reverse (1413121343221), we get a palindrome (2636552556362).

The spelling of 1223431213141 in words is "one trillion, two hundred twenty-three billion, four hundred thirty-one million, two hundred thirteen thousand, one hundred forty-one".