1301135020 has 12 divisors (see below), whose sum is σ = 2732383584. Its totient is φ = 520454000.

The previous prime is 1301134993. The next prime is 1301135021. The reversal of 1301135020 is 205311031.

It is a junction number, because it is equal to n+sod(n) for n = 1301134985 and 1301135003.

It is not an unprimeable number, because it can be changed into a prime (1301135021) 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, 32528356 + ... + 32528395.

It is an arithmetic number, because the mean of its divisors is an integer number (227698632).

Almost surely, 2^1301135020 is an apocalyptic number.

1301135020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301135020 is an abundant number, since it is smaller than the sum of its proper divisors (1431248564).

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

1301135020 is a wasteful number, since it uses less digits than its factorization.

1301135020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65056760 (or 65056758 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1301135020 is about 36071.2492159615. The cubic root of 1301135020 is about 1091.7104195764.

Adding to 1301135020 its reverse (205311031), we get a palindrome (1506446051).

The spelling of 1301135020 in words is "one billion, three hundred one million, one hundred thirty-five thousand, twenty".