21403400133011 has 8 divisors (see below), whose sum is σ = 23119452437424. Its totient is φ = 19697295958560.

The previous prime is 21403400133007. The next prime is 21403400133013. The reversal of 21403400133011 is 11033100430412.

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 21403400133011 - 2² = 21403400133007 is a prime.

It is a super-2 number, since 2×21403400133011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21403400133013) 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, 2487028016 + ... + 2487036621.

It is an arithmetic number, because the mean of its divisors is an integer number (2889931554678).

Almost surely, 2^{21403400133011} is an apocalyptic number.

21403400133011 is a deficient number, since it is larger than the sum of its proper divisors (1716052304413).

21403400133011 is a wasteful number, since it uses less digits than its factorization.

21403400133011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4974064981.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21403400133011 its reverse (11033100430412), we get a palindrome (32436500563423).

The spelling of 21403400133011 in words is "twenty-one trillion, four hundred three billion, four hundred million, one hundred thirty-three thousand, eleven".