1201312770 has 64 divisors (see below), whose sum is σ = 3438305280. Its totient is φ = 262646208.

The previous prime is 1201312757. The next prime is 1201312807. The reversal of 1201312770 is 772131021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201312770.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119530 + ... + 129189.

It is an arithmetic number, because the mean of its divisors is an integer number (53723520).

Almost surely, 2^1201312770 is an apocalyptic number.

1201312770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201312770 is an abundant number, since it is smaller than the sum of its proper divisors (2236992510).

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

1201312770 is a wasteful number, since it uses less digits than its factorization.

1201312770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248759.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 1201312770 is about 34659.9591748173. The cubic root of 1201312770 is about 1063.0459352634.

Adding to 1201312770 its reverse (772131021), we get a palindrome (1973443791).

The spelling of 1201312770 in words is "one billion, two hundred one million, three hundred twelve thousand, seven hundred seventy".