21411322313 has 2 divisors, whose sum is σ = 21411322314. Its totient is φ = 21411322312.

The previous prime is 21411322307. The next prime is 21411322321. The reversal of 21411322313 is 31322311412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14129601424 + 7281720889 = 118868^2 + 85333^2 .

It is a cyclic number.

It is not a de Polignac number, because 21411322313 - 2²² = 21407128009 is a prime.

It is not a weakly prime, because it can be changed into another prime (21411322913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10705661156 + 10705661157.

It is an arithmetic number, because the mean of its divisors is an integer number (10705661157).

Almost surely, 2^21411322313 is an apocalyptic number.

It is an amenable number.

21411322313 is a deficient number, since it is larger than the sum of its proper divisors (1).

21411322313 is an equidigital number, since it uses as much as digits as its factorization.

21411322313 is an evil number, because the sum of its binary digits is even.

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

Adding to 21411322313 its reverse (31322311412), we get a palindrome (52733633725).

The spelling of 21411322313 in words is "twenty-one billion, four hundred eleven million, three hundred twenty-two thousand, three hundred thirteen".