1301203011 has 16 divisors (see below), whose sum is σ = 1840640000. Its totient is φ = 815336928.

The previous prime is 1301203009. The next prime is 1301203031. The reversal of 1301203011 is 1103021031.

It is not a de Polignac number, because 1301203011 - 2¹ = 1301203009 is a prime.

It is a super-2 number, since 2×1301203011² = 3386258551670932242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301203031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82636 + ... + 97113.

It is an arithmetic number, because the mean of its divisors is an integer number (115040000).

Almost surely, 2^1301203011 is an apocalyptic number.

1301203011 is a deficient number, since it is larger than the sum of its proper divisors (539436989).

1301203011 is a wasteful number, since it uses less digits than its factorization.

1301203011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179898.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1301203011 is about 36072.1916578408. The cubic root of 1301203011 is about 1091.7294350742.

Adding to 1301203011 its reverse (1103021031), we get a palindrome (2404224042).

The spelling of 1301203011 in words is "one billion, three hundred one million, two hundred three thousand, eleven".