1123422031213 has 4 divisors (see below), whose sum is σ = 1182549506560. Its totient is φ = 1064294555868.

The previous prime is 1123422031183. The next prime is 1123422031217. The reversal of 1123422031213 is 3121302243211.

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 1123422031213 - 2⁹ = 1123422030701 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 (1123422031217) 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, 29563737645 + ... + 29563737682.

It is an arithmetic number, because the mean of its divisors is an integer number (295637376640).

Almost surely, 2^{1123422031213} is an apocalyptic number.

It is an amenable number.

1123422031213 is a deficient number, since it is larger than the sum of its proper divisors (59127475347).

1123422031213 is an equidigital number, since it uses as much as digits as its factorization.

1123422031213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59127475346.

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

Adding to 1123422031213 its reverse (3121302243211), we get a palindrome (4244724274424).

The spelling of 1123422031213 in words is "one trillion, one hundred twenty-three billion, four hundred twenty-two million, thirty-one thousand, two hundred thirteen".