1056103511 has 4 divisors (see below), whose sum is σ = 1058308800. Its totient is φ = 1053898224.

The previous prime is 1056103501. The next prime is 1056103519. The reversal of 1056103511 is 1153016501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056103511 is a prime.

It is a super-2 number, since 2×1056103511² = 2230709251893054242, 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 (1056103519) 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, 1101926 + ... + 1102883.

It is an arithmetic number, because the mean of its divisors is an integer number (264577200).

Almost surely, 2^1056103511 is an apocalyptic number.

1056103511 is a deficient number, since it is larger than the sum of its proper divisors (2205289).

1056103511 is an equidigital number, since it uses as much as digits as its factorization.

1056103511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205288.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 1056103511 is about 32497.7462449321. The cubic root of 1056103511 is about 1018.3619456413.

The spelling of 1056103511 in words is "one billion, fifty-six million, one hundred three thousand, five hundred eleven".