10123213131343 has 4 divisors (see below), whose sum is σ = 10901921833768. Its totient is φ = 9344504428920.

The previous prime is 10123213131293. The next prime is 10123213131389. The reversal of 10123213131343 is 34313131232101.

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 10123213131343 - 2²¹ = 10123211034191 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 (10123213131943) 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, 389354351193 + ... + 389354351218.

It is an arithmetic number, because the mean of its divisors is an integer number (2725480458442).

Almost surely, 2^{10123213131343} is an apocalyptic number.

10123213131343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10123213131343 is a deficient number, since it is larger than the sum of its proper divisors (778708702425).

10123213131343 is an equidigital number, since it uses as much as digits as its factorization.

10123213131343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778708702424.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 10123213131343 its reverse (34313131232101), we get a palindrome (44436344363444).

The spelling of 10123213131343 in words is "ten trillion, one hundred twenty-three billion, two hundred thirteen million, one hundred thirty-one thousand, three hundred forty-three".