1023213434123 has 4 divisors (see below), whose sum is σ = 1028515058328. Its totient is φ = 1017911809920.

The previous prime is 1023213434083. The next prime is 1023213434147. The reversal of 1023213434123 is 3214343123201.

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 1023213434123 - 2¹² = 1023213430027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023213434423) 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, 2650811813 + ... + 2650812198.

It is an arithmetic number, because the mean of its divisors is an integer number (257128764582).

Almost surely, 2^{1023213434123} is an apocalyptic number.

1023213434123 is a deficient number, since it is larger than the sum of its proper divisors (5301624205).

1023213434123 is an equidigital number, since it uses as much as digits as its factorization.

1023213434123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5301624204.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 1023213434123 its reverse (3214343123201), we get a palindrome (4237556557324).

The spelling of 1023213434123 in words is "one trillion, twenty-three billion, two hundred thirteen million, four hundred thirty-four thousand, one hundred twenty-three".