13631421011 has 8 divisors (see below), whose sum is σ = 14681852640. Its totient is φ = 12581255232.

The previous prime is 13631420989. The next prime is 13631421031. The reversal of 13631421011 is 11012413631.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-13631421011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13631421031) 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, 47255 + ... + 171743.

It is an arithmetic number, because the mean of its divisors is an integer number (1835231580).

Almost surely, 2^13631421011 is an apocalyptic number.

13631421011 is a deficient number, since it is larger than the sum of its proper divisors (1050431629).

13631421011 is a wasteful number, since it uses less digits than its factorization.

13631421011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132925.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 13631421011 its reverse (11012413631), we get a palindrome (24643834642).

The spelling of 13631421011 in words is "thirteen billion, six hundred thirty-one million, four hundred twenty-one thousand, eleven".