111232367421 has 16 divisors (see below), whose sum is σ = 169660108800. Its totient is φ = 63500164848.

The previous prime is 111232367399. The next prime is 111232367483. The reversal of 111232367421 is 124763232111.

It is not a de Polignac number, because 111232367421 - 2⁶ = 111232367357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111232362421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2527161 + ... + 2570798.

It is an arithmetic number, because the mean of its divisors is an integer number (10603756800).

Almost surely, 2^111232367421 is an apocalyptic number.

It is an amenable number.

111232367421 is a deficient number, since it is larger than the sum of its proper divisors (58427741379).

111232367421 is a wasteful number, since it uses less digits than its factorization.

111232367421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5099008.

The product of its digits is 12096, while the sum is 33.

Adding to 111232367421 its reverse (124763232111), we get a palindrome (235995599532).

The spelling of 111232367421 in words is "one hundred eleven billion, two hundred thirty-two million, three hundred sixty-seven thousand, four hundred twenty-one".