1011351013 has 4 divisors (see below), whose sum is σ = 1034870848. Its totient is φ = 987831180.

The previous prime is 1011350999. The next prime is 1011351031. The reversal of 1011351013 is 3101531101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3101531101 = 19 ⋅163238479.

It is a cyclic number.

It is not a de Polignac number, because 1011351013 - 2²⁵ = 977796581 is a prime.

It is a super-2 number, since 2×1011351013² = 2045661742992252338, 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 (1011351043) 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, 11759853 + ... + 11759938.

It is an arithmetic number, because the mean of its divisors is an integer number (258717712).

Almost surely, 2^1011351013 is an apocalyptic number.

It is an amenable number.

1011351013 is a deficient number, since it is larger than the sum of its proper divisors (23519835).

1011351013 is an equidigital number, since it uses as much as digits as its factorization.

1011351013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23519834.

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

The square root of 1011351013 is about 31801.7454395195. The cubic root of 1011351013 is about 1003.7694444357.

Adding to 1011351013 its reverse (3101531101), we get a palindrome (4112882114).

The spelling of 1011351013 in words is "one billion, eleven million, three hundred fifty-one thousand, thirteen".