1201020258 has 16 divisors (see below), whose sum is σ = 2403466560. Its totient is φ = 400102416.

The previous prime is 1201020253. The next prime is 1201020283. The reversal of 1201020258 is 8520201021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1201020253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48310 + ... + 68817.

It is an arithmetic number, because the mean of its divisors is an integer number (150216660).

Almost surely, 2^1201020258 is an apocalyptic number.

1201020258 is an abundant number, since it is smaller than the sum of its proper divisors (1202446302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201020258 is a wasteful number, since it uses less digits than its factorization.

1201020258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118841.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1201020258 is about 34655.7391783814. The cubic root of 1201020258 is about 1062.9596466237.

Adding to 1201020258 its reverse (8520201021), we get a palindrome (9721221279).

The spelling of 1201020258 in words is "one billion, two hundred one million, twenty thousand, two hundred fifty-eight".