122871711541 has 4 divisors (see below), whose sum is σ = 122874172300. Its totient is φ = 122869250784.

The previous prime is 122871711463. The next prime is 122871711583. The reversal of 122871711541 is 145117178221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 59041710225 + 63830001316 = 242985^2 + 252646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122871711541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122871711494 and 122871711503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122871714541) 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, 1153896 + ... + 1255873.

It is an arithmetic number, because the mean of its divisors is an integer number (30718543075).

Almost surely, 2^122871711541 is an apocalyptic number.

It is an amenable number.

122871711541 is a deficient number, since it is larger than the sum of its proper divisors (2460759).

122871711541 is an equidigital number, since it uses as much as digits as its factorization.

122871711541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460758.

The product of its digits is 31360, while the sum is 40.

Adding to 122871711541 its reverse (145117178221), we get a palindrome (267988889762).

The spelling of 122871711541 in words is "one hundred twenty-two billion, eight hundred seventy-one million, seven hundred eleven thousand, five hundred forty-one".