1301139611 has 4 divisors (see below), whose sum is σ = 1302320352. Its totient is φ = 1299958872.

The previous prime is 1301139583. The next prime is 1301139613. The reversal of 1301139611 is 1169311031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1169311031 = 7 ⋅167044433.

It is a cyclic number.

It is not a de Polignac number, because 1301139611 - 2⁶ = 1301139547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301139613) 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, 588716 + ... + 590921.

It is an arithmetic number, because the mean of its divisors is an integer number (325580088).

Almost surely, 2^1301139611 is an apocalyptic number.

1301139611 is a deficient number, since it is larger than the sum of its proper divisors (1180741).

1301139611 is a wasteful number, since it uses less digits than its factorization.

1301139611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180740.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 1301139611 is about 36071.3128538455. The cubic root of 1301139611 is about 1091.7117035930.

The spelling of 1301139611 in words is "one billion, three hundred one million, one hundred thirty-nine thousand, six hundred eleven".