1301121312 has 24 divisors (see below), whose sum is σ = 3415443696. Its totient is φ = 433707072.

The previous prime is 1301121271. The next prime is 1301121331. The reversal of 1301121312 is 2131211031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 1301121291 and 1301121300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6776578 + ... + 6776769.

It is an arithmetic number, because the mean of its divisors is an integer number (142310154).

Almost surely, 2^1301121312 is an apocalyptic number.

1301121312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1301121312 is an abundant number, since it is smaller than the sum of its proper divisors (2114322384).

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

1301121312 is a wasteful number, since it uses less digits than its factorization.

1301121312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13553360 (or 13553352 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1301121312 is about 36071.0592026350. The cubic root of 1301121312 is about 1091.7065856881.

Adding to 1301121312 its reverse (2131211031), we get a palindrome (3432332343).

The spelling of 1301121312 in words is "one billion, three hundred one million, one hundred twenty-one thousand, three hundred twelve".