11213640501 has 32 divisors (see below), whose sum is σ = 17921046528. Its totient is φ = 6098030400.

The previous prime is 11213640499. The next prime is 11213640551. The reversal of 11213640501 is 10504631211.

It is a happy number.

It is not a de Polignac number, because 11213640501 - 2¹ = 11213640499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213640551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36226 + ... + 154076.

It is an arithmetic number, because the mean of its divisors is an integer number (560032704).

Almost surely, 2^11213640501 is an apocalyptic number.

It is an amenable number.

11213640501 is a deficient number, since it is larger than the sum of its proper divisors (6707406027).

11213640501 is a wasteful number, since it uses less digits than its factorization.

11213640501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118081.

The product of its (nonzero) digits is 720, while the sum is 24.

The spelling of 11213640501 in words is "eleven billion, two hundred thirteen million, six hundred forty thousand, five hundred one".