111201379469 has 2 divisors, whose sum is σ = 111201379470. Its totient is φ = 111201379468.

The previous prime is 111201379441. The next prime is 111201379481. The reversal of 111201379469 is 964973102111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97835707369 + 13365672100 = 312787^2 + 115610^2 .

It is an emirp because it is prime and its reverse (964973102111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111201379469 - 2¹⁶ = 111201313933 is a prime.

It is a super-2 number, since 2×111201379469² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111201379669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55600689734 + 55600689735.

It is an arithmetic number, because the mean of its divisors is an integer number (55600689735).

Almost surely, 2^111201379469 is an apocalyptic number.

It is an amenable number.

111201379469 is a deficient number, since it is larger than the sum of its proper divisors (1).

111201379469 is an equidigital number, since it uses as much as digits as its factorization.

111201379469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 111201379469 in words is "one hundred eleven billion, two hundred one million, three hundred seventy-nine thousand, four hundred sixty-nine".