1301213133 has 32 divisors (see below), whose sum is σ = 2226683520. Its totient is φ = 742222080.

The previous prime is 1301213131. The next prime is 1301213149. The reversal of 1301213133 is 3313121031.

It is a happy number.

It is not a de Polignac number, because 1301213133 - 2¹ = 1301213131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301213131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123810 + ... + 133907.

It is an arithmetic number, because the mean of its divisors is an integer number (69583860).

Almost surely, 2^1301213133 is an apocalyptic number.

It is an amenable number.

1301213133 is a deficient number, since it is larger than the sum of its proper divisors (925470387).

1301213133 is a wasteful number, since it uses less digits than its factorization.

1301213133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257754 (or 257748 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1301213133 is about 36072.3319595504. The cubic root of 1301213133 is about 1091.7322659050.

Adding to 1301213133 its reverse (3313121031), we get a palindrome (4614334164).

The spelling of 1301213133 in words is "one billion, three hundred one million, two hundred thirteen thousand, one hundred thirty-three".