20121113401 has 8 divisors (see below), whose sum is σ = 20215203840. Its totient is φ = 20027105952.

The previous prime is 20121113387. The next prime is 20121113429. The reversal of 20121113401 is 10431112102.

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 20121113401 - 2⁷ = 20121113273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121113501) 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, 495016 + ... + 534118.

It is an arithmetic number, because the mean of its divisors is an integer number (2526900480).

Almost surely, 2^20121113401 is an apocalyptic number.

It is an amenable number.

20121113401 is a deficient number, since it is larger than the sum of its proper divisors (94090439).

20121113401 is a wasteful number, since it uses less digits than its factorization.

20121113401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41495.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20121113401 its reverse (10431112102), we get a palindrome (30552225503).

The spelling of 20121113401 in words is "twenty billion, one hundred twenty-one million, one hundred thirteen thousand, four hundred one".