111012030021397 has 2 divisors, whose sum is σ = 111012030021398. Its totient is φ = 111012030021396.

The previous prime is 111012030021281. The next prime is 111012030021421. The reversal of 111012030021397 is 793120030210111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67817349646641 + 43194680374756 = 8235129^2 + 6572266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111012030021397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111012030021797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506015010698 + 55506015010699.

It is an arithmetic number, because the mean of its divisors is an integer number (55506015010699).

Almost surely, 2^{111012030021397} is an apocalyptic number.

It is an amenable number.

111012030021397 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012030021397 is an equidigital number, since it uses as much as digits as its factorization.

111012030021397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 31.

The spelling of 111012030021397 in words is "one hundred eleven trillion, twelve billion, thirty million, twenty-one thousand, three hundred ninety-seven".