1423121011043 has 8 divisors (see below), whose sum is σ = 1450011427488. Its totient is φ = 1396232041984.

The previous prime is 1423121010989. The next prime is 1423121011051. The reversal of 1423121011043 is 3401101213241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423121011043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423121011643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1737146 + ... + 2421552.

It is an arithmetic number, because the mean of its divisors is an integer number (181251428436).

Almost surely, 2^{1423121011043} is an apocalyptic number.

1423121011043 is a deficient number, since it is larger than the sum of its proper divisors (26890416445).

1423121011043 is an equidigital number, since it uses as much as digits as its factorization.

1423121011043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723693.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1423121011043 its reverse (3401101213241), we get a palindrome (4824222224284).

The spelling of 1423121011043 in words is "one trillion, four hundred twenty-three billion, one hundred twenty-one million, eleven thousand, forty-three".