1001313511 has 4 divisors (see below), whose sum is σ = 1092342024. Its totient is φ = 910285000.

The previous prime is 1001313503. The next prime is 1001313527. The reversal of 1001313511 is 1153131001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1153131001 = 11 ⋅104830091.

It is a cyclic number.

It is not a de Polignac number, because 1001313511 - 2³ = 1001313503 is a prime.

It is a super-2 number, since 2×1001313511² = 2005257494622294242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001313541) 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, 45514240 + ... + 45514261.

It is an arithmetic number, because the mean of its divisors is an integer number (273085506).

Almost surely, 2^1001313511 is an apocalyptic number.

1001313511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1001313511 is a deficient number, since it is larger than the sum of its proper divisors (91028513).

1001313511 is an equidigital number, since it uses as much as digits as its factorization.

1001313511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91028512.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 1001313511 is about 31643.5382187264. The cubic root of 1001313511 is about 1000.4376454385.

Adding to 1001313511 its reverse (1153131001), we get a palindrome (2154444512).

The spelling of 1001313511 in words is "one billion, one million, three hundred thirteen thousand, five hundred eleven".