1163200421 has 2 divisors, whose sum is σ = 1163200422. Its totient is φ = 1163200420.

The previous prime is 1163200403. The next prime is 1163200447. The reversal of 1163200421 is 1240023611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1157020225 + 6180196 = 34015^2 + 2486^2 .

It is an emirp because it is prime and its reverse (1240023611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1163200421 - 2²² = 1159006117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1163200393 and 1163200402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1163200481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581600210 + 581600211.

It is an arithmetic number, because the mean of its divisors is an integer number (581600211).

Almost surely, 2^1163200421 is an apocalyptic number.

It is an amenable number.

1163200421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163200421 is an equidigital number, since it uses as much as digits as its factorization.

1163200421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1163200421 is about 34105.7241676526. The cubic root of 1163200421 is about 1051.6829913784.

The spelling of 1163200421 in words is "one billion, one hundred sixty-three million, two hundred thousand, four hundred twenty-one".