110520000421 has 2 divisors, whose sum is σ = 110520000422. Its totient is φ = 110520000420.

The previous prime is 110520000403. The next prime is 110520000427. The reversal of 110520000421 is 124000025011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109322148321 + 1197852100 = 330639^2 + 34610^2 .

It is a cyclic number.

It is not a de Polignac number, because 110520000421 - 2⁵ = 110520000389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110520000395 and 110520000404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110520000427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55260000210 + 55260000211.

It is an arithmetic number, because the mean of its divisors is an integer number (55260000211).

Almost surely, 2^110520000421 is an apocalyptic number.

It is an amenable number.

110520000421 is a deficient number, since it is larger than the sum of its proper divisors (1).

110520000421 is an equidigital number, since it uses as much as digits as its factorization.

110520000421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 110520000421 its reverse (124000025011), we get a palindrome (234520025432).

The spelling of 110520000421 in words is "one hundred ten billion, five hundred twenty million, four hundred twenty-one", and thus it is an aban number.