1231110123342 has 64 divisors (see below), whose sum is σ = 2750860528128. Its totient is φ = 364167440000.

The previous prime is 1231110123337. The next prime is 1231110123379. The reversal of 1231110123342 is 2433210111321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 827313 + ... + 1773884.

It is an arithmetic number, because the mean of its divisors is an integer number (42982195752).

Almost surely, 2^{1231110123342} is an apocalyptic number.

1231110123342 is an abundant number, since it is smaller than the sum of its proper divisors (1519750404786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231110123342 is a wasteful number, since it uses less digits than its factorization.

1231110123342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601385.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1231110123342 its reverse (2433210111321), we get a palindrome (3664320234663).

The spelling of 1231110123342 in words is "one trillion, two hundred thirty-one billion, one hundred ten million, one hundred twenty-three thousand, three hundred forty-two".