1321102322123 has 4 divisors (see below), whose sum is σ = 1366657574640. Its totient is φ = 1275547069608.

The previous prime is 1321102322119. The next prime is 1321102322149. The reversal of 1321102322123 is 3212232011231.

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 1321102322123 - 2² = 1321102322119 is a prime.

It is a super-2 number, since 2×1321102322123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321102322153) 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, 22777626215 + ... + 22777626272.

It is an arithmetic number, because the mean of its divisors is an integer number (341664393660).

Almost surely, 2^{1321102322123} is an apocalyptic number.

1321102322123 is a deficient number, since it is larger than the sum of its proper divisors (45555252517).

1321102322123 is an equidigital number, since it uses as much as digits as its factorization.

1321102322123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45555252516.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1321102322123 its reverse (3212232011231), we get a palindrome (4533334333354).

The spelling of 1321102322123 in words is "one trillion, three hundred twenty-one billion, one hundred two million, three hundred twenty-two thousand, one hundred twenty-three".