111421303261 has 8 divisors (see below), whose sum is σ = 117540007200. Its totient is φ = 105328041840.

The previous prime is 111421303249. The next prime is 111421303267. The reversal of 111421303261 is 162303124111.

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

It is a cyclic number.

It is not a de Polignac number, because 111421303261 - 2⁵ = 111421303229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111421303267) 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, 6351631 + ... + 6369148.

It is an arithmetic number, because the mean of its divisors is an integer number (14692500900).

Almost surely, 2^111421303261 is an apocalyptic number.

It is an amenable number.

111421303261 is a deficient number, since it is larger than the sum of its proper divisors (6118703939).

111421303261 is a wasteful number, since it uses less digits than its factorization.

111421303261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12721259.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 111421303261 its reverse (162303124111), we get a palindrome (273724427372).

The spelling of 111421303261 in words is "one hundred eleven billion, four hundred twenty-one million, three hundred three thousand, two hundred sixty-one".