1012230091 has 2 divisors, whose sum is σ = 1012230092. Its totient is φ = 1012230090.

The previous prime is 1012230061. The next prime is 1012230097. The reversal of 1012230091 is 1900322101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1012230091 - 2⁵ = 1012230059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012230097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506115045 + 506115046.

It is an arithmetic number, because the mean of its divisors is an integer number (506115046).

Almost surely, 2^1012230091 is an apocalyptic number.

1012230091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012230091 is an equidigital number, since it uses as much as digits as its factorization.

1012230091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1012230091 is about 31815.5636599448. The cubic root of 1012230091 is about 1004.0601895499.

Adding to 1012230091 its reverse (1900322101), we get a palindrome (2912552192).

The spelling of 1012230091 in words is "one billion, twelve million, two hundred thirty thousand, ninety-one".