130201993 has 2 divisors, whose sum is σ = 130201994. Its totient is φ = 130201992.

The previous prime is 130201961. The next prime is 130202021. The reversal of 130201993 is 399102031.

It is an a-pointer prime, because the next prime (130202021) can be obtained adding 130201993 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100641024 + 29560969 = 10032^2 + 5437^2 .

It is a cyclic number.

It is not a de Polignac number, because 130201993 - 2⁵ = 130201961 is a prime.

It is not a weakly prime, because it can be changed into another prime (130201933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65100996 + 65100997.

It is an arithmetic number, because the mean of its divisors is an integer number (65100997).

Almost surely, 2^130201993 is an apocalyptic number.

It is an amenable number.

130201993 is a deficient number, since it is larger than the sum of its proper divisors (1).

130201993 is an equidigital number, since it uses as much as digits as its factorization.

130201993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 130201993 is about 11410.6087918218. The cubic root of 130201993 is about 506.8419393508.

The spelling of 130201993 in words is "one hundred thirty million, two hundred one thousand, nine hundred ninety-three".