21232113701 has 8 divisors (see below), whose sum is σ = 21381199584. Its totient is φ = 21083203440.

The previous prime is 21232113697. The next prime is 21232113731. The reversal of 21232113701 is 10731123212.

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

It is not a de Polignac number, because 21232113701 - 2² = 21232113697 is a prime.

It is a super-3 number, since 3×21232113701³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21232113731) 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, 203606 + ... + 289688.

It is an arithmetic number, because the mean of its divisors is an integer number (2672649948).

Almost surely, 2^21232113701 is an apocalyptic number.

It is an amenable number.

21232113701 is a deficient number, since it is larger than the sum of its proper divisors (149085883).

21232113701 is a wasteful number, since it uses less digits than its factorization.

21232113701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87811.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 21232113701 its reverse (10731123212), we get a palindrome (31963236913).

The spelling of 21232113701 in words is "twenty-one billion, two hundred thirty-two million, one hundred thirteen thousand, seven hundred one".