11031021402123 has 8 divisors (see below), whose sum is σ = 14709587123088. Its totient is φ = 7353234974624.

The previous prime is 11031021402119. The next prime is 11031021402173. The reversal of 11031021402123 is 32120412013011.

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

It is a cyclic number.

It is not a de Polignac number, because 11031021402123 - 2² = 11031021402119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11031021402123.

It is not an unprimeable number, because it can be changed into a prime (11031021402173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194790336 + ... + 194846957.

It is an arithmetic number, because the mean of its divisors is an integer number (1838698390386).

Almost surely, 2^{11031021402123} is an apocalyptic number.

11031021402123 is a deficient number, since it is larger than the sum of its proper divisors (3678565720965).

11031021402123 is an equidigital number, since it uses as much as digits as its factorization.

11031021402123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389646733.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 11031021402123 its reverse (32120412013011), we get a palindrome (43151433415134).

The spelling of 11031021402123 in words is "eleven trillion, thirty-one billion, twenty-one million, four hundred two thousand, one hundred twenty-three".