1126253511243 has 32 divisors (see below), whose sum is σ = 1933005977600. Its totient is φ = 634757352768.

The previous prime is 1126253511223. The next prime is 1126253511283. The reversal of 1126253511243 is 3421153526211.

1126253511243 is a `hidden beast` number, since 1 + 1 + 2 + 6 + 2 + 535 + 112 + 4 + 3 = 666.

It is not a de Polignac number, because 1126253511243 - 2⁵ = 1126253511211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1126253511198 and 1126253511207.

It is not an unprimeable number, because it can be changed into a prime (1126253511223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40801363 + ... + 40828956.

It is an arithmetic number, because the mean of its divisors is an integer number (60406436800).

Almost surely, 2^{1126253511243} is an apocalyptic number.

1126253511243 is a deficient number, since it is larger than the sum of its proper divisors (806752466357).

1126253511243 is an equidigital number, since it uses as much as digits as its factorization.

1126253511243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81630408 (or 81630402 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The spelling of 1126253511243 in words is "one trillion, one hundred twenty-six billion, two hundred fifty-three million, five hundred eleven thousand, two hundred forty-three".