122321131315511 has 4 divisors (see below), whose sum is σ = 122321956402800. Its totient is φ = 122320306228224.

The previous prime is 122321131315483. The next prime is 122321131315547. The reversal of 122321131315511 is 115513131123221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122321131315511 is a prime.

It is a super-3 number, since 3×122321131315511³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122321131315571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412321226 + ... + 412617783.

It is an arithmetic number, because the mean of its divisors is an integer number (30580489100700).

Almost surely, 2^{122321131315511} is an apocalyptic number.

122321131315511 is a deficient number, since it is larger than the sum of its proper divisors (825087289).

122321131315511 is an equidigital number, since it uses as much as digits as its factorization.

122321131315511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825087288.

The product of its digits is 5400, while the sum is 32.

Adding to 122321131315511 its reverse (115513131123221), we get a palindrome (237834262438732).

The spelling of 122321131315511 in words is "one hundred twenty-two trillion, three hundred twenty-one billion, one hundred thirty-one million, three hundred fifteen thousand, five hundred eleven".