1201320862 has 16 divisors (see below), whose sum is σ = 2063613312. Its totient is φ = 513800280.

The previous prime is 1201320851. The next prime is 1201320863. The reversal of 1201320862 is 2680231021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201320863) 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, 80508 + ... + 94255.

It is an arithmetic number, because the mean of its divisors is an integer number (128975832).

Almost surely, 2^1201320862 is an apocalyptic number.

1201320862 is a deficient number, since it is larger than the sum of its proper divisors (862292450).

1201320862 is a wasteful number, since it uses less digits than its factorization.

1201320862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175263.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1201320862 is about 34660.0759087455. The cubic root of 1201320862 is about 1063.0483221379.

Adding to 1201320862 its reverse (2680231021), we get a palindrome (3881551883).

The spelling of 1201320862 in words is "one billion, two hundred one million, three hundred twenty thousand, eight hundred sixty-two".