111121003656452 has 6 divisors (see below), whose sum is σ = 194461756398798. Its totient is φ = 55560501828224.

The previous prime is 111121003656431. The next prime is 111121003656491. The reversal of 111121003656452 is 254656300121111.

111121003656452 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 71651247666436 + 39469755990016 = 8464706^2 + 6282496^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13890125457053 + ... + 13890125457060.

It is an arithmetic number, because the mean of its divisors is an integer number (32410292733133).

Almost surely, 2^{111121003656452} is an apocalyptic number.

It is an amenable number.

111121003656452 is a deficient number, since it is larger than the sum of its proper divisors (83340752742346).

111121003656452 is a wasteful number, since it uses less digits than its factorization.

111121003656452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27780250914117 (or 27780250914115 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

Adding to 111121003656452 its reverse (254656300121111), we get a palindrome (365777303777563).

The spelling of 111121003656452 in words is "one hundred eleven trillion, one hundred twenty-one billion, three million, six hundred fifty-six thousand, four hundred fifty-two".