1301231312 has 40 divisors (see below), whose sum is σ = 2571338400. Its totient is φ = 637725312.

The previous prime is 1301231311. The next prime is 1301231329. The reversal of 1301231312 is 2131321031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301231311) 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, 355958 + ... + 359594.

It is an arithmetic number, because the mean of its divisors is an integer number (64283460).

Almost surely, 2^1301231312 is an apocalyptic number.

It is an amenable number.

1301231312 is a deficient number, since it is larger than the sum of its proper divisors (1270107088).

1301231312 is a wasteful number, since it uses less digits than its factorization.

1301231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4083 (or 4077 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1301231312 is about 36072.5839384982. The cubic root of 1301231312 is about 1091.7373500089.

Adding to 1301231312 its reverse (2131321031), we get a palindrome (3432552343).

The spelling of 1301231312 in words is "one billion, three hundred one million, two hundred thirty-one thousand, three hundred twelve".