1301213135 has 4 divisors (see below), whose sum is σ = 1561455768. Its totient is φ = 1040970504.

The previous prime is 1301213131. The next prime is 1301213149. The reversal of 1301213135 is 5313121031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1301213135 - 2² = 1301213131 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 130121309 + ... + 130121318.

It is an arithmetic number, because the mean of its divisors is an integer number (390363942).

Almost surely, 2^1301213135 is an apocalyptic number.

1301213135 is a deficient number, since it is larger than the sum of its proper divisors (260242633).

1301213135 is an equidigital number, since it uses as much as digits as its factorization.

1301213135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260242632.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1301213135 is about 36072.3319872725. The cubic root of 1301213135 is about 1091.7322664643.

Adding to 1301213135 its reverse (5313121031), we get a palindrome (6614334166).

The spelling of 1301213135 in words is "one billion, three hundred one million, two hundred thirteen thousand, one hundred thirty-five".