21310201101 has 16 divisors (see below), whose sum is σ = 32957356544. Its totient is φ = 11995506864.

The previous prime is 21310201079. The next prime is 21310201141. The reversal of 21310201101 is 10110201312.

It is not a de Polignac number, because 21310201101 - 2⁶ = 21310201037 is a prime.

It is a super-2 number, since 2×21310201101² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310201141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7571515 + ... + 7574328.

It is an arithmetic number, because the mean of its divisors is an integer number (2059834784).

Almost surely, 2^21310201101 is an apocalyptic number.

21310201101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21310201101 is a deficient number, since it is larger than the sum of its proper divisors (11647155443).

21310201101 is a wasteful number, since it uses less digits than its factorization.

21310201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15145920.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 21310201101 its reverse (10110201312), we get a palindrome (31420402413).

The spelling of 21310201101 in words is "twenty-one billion, three hundred ten million, two hundred one thousand, one hundred one".