1012420291 has 2 divisors, whose sum is σ = 1012420292. Its totient is φ = 1012420290.

The previous prime is 1012420271. The next prime is 1012420391. The reversal of 1012420291 is 1920242101.

1012420291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012420291 - 2⁵ = 1012420259 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012420271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506210145 + 506210146.

It is an arithmetic number, because the mean of its divisors is an integer number (506210146).

Almost surely, 2^1012420291 is an apocalyptic number.

1012420291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012420291 is an equidigital number, since it uses as much as digits as its factorization.

1012420291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1012420291 is about 31818.5526226445. The cubic root of 1012420291 is about 1004.1230738979.

Adding to 1012420291 its reverse (1920242101), we get a palindrome (2932662392).

The spelling of 1012420291 in words is "one billion, twelve million, four hundred twenty thousand, two hundred ninety-one".