1301131224 has 24 divisors (see below), whose sum is σ = 3523897260. Its totient is φ = 433710384.

The previous prime is 1301131199. The next prime is 1301131231. The reversal of 1301131224 is 4221311031.

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

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1301131197 and 1301131206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9035562 + ... + 9035705.

Almost surely, 2^1301131224 is an apocalyptic number.

It is an amenable number.

1301131224 is an abundant number, since it is smaller than the sum of its proper divisors (2222766036).

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

1301131224 is a wasteful number, since it uses less digits than its factorization.

1301131224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18071279 (or 18071272 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1301131224 is about 36071.1965978397. The cubic root of 1301131224 is about 1091.7093579042.

Adding to 1301131224 its reverse (4221311031), we get a palindrome (5522442255).

The spelling of 1301131224 in words is "one billion, three hundred one million, one hundred thirty-one thousand, two hundred twenty-four".