11020513051 has 8 divisors (see below), whose sum is σ = 11377608704. Its totient is φ = 10663517160.

The previous prime is 11020513013. The next prime is 11020513069. The reversal of 11020513051 is 15031502011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11020513051 - 2⁹ = 11020512539 is a prime.

It is a super-2 number, since 2×11020513051² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11020513151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246700 + ... + 287926.

It is an arithmetic number, because the mean of its divisors is an integer number (1422201088).

Almost surely, 2^11020513051 is an apocalyptic number.

11020513051 is a deficient number, since it is larger than the sum of its proper divisors (357095653).

11020513051 is an equidigital number, since it uses as much as digits as its factorization.

11020513051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49881.

The product of its (nonzero) digits is 150, while the sum is 19.

It can be divided in two parts, 110205 and 13051, that added together give a triangular number (123256 = T₄₉₆).

The spelling of 11020513051 in words is "eleven billion, twenty million, five hundred thirteen thousand, fifty-one".