1051581211043 has 16 divisors (see below), whose sum is σ = 1175421553152. Its totient is φ = 932507100000.

The previous prime is 1051581211033. The next prime is 1051581211069. The reversal of 1051581211043 is 3401121851501.

It is a cyclic number.

It is not a de Polignac number, because 1051581211043 - 2⁴ = 1051581211027 is a prime.

It is a super-2 number, since 2×1051581211043² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051581211033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1124948 + ... + 1835393.

It is an arithmetic number, because the mean of its divisors is an integer number (73463847072).

Almost surely, 2^{1051581211043} is an apocalyptic number.

1051581211043 is a deficient number, since it is larger than the sum of its proper divisors (123840342109).

1051581211043 is a wasteful number, since it uses less digits than its factorization.

1051581211043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961146.

The product of its (nonzero) digits is 4800, while the sum is 32.

The spelling of 1051581211043 in words is "one trillion, fifty-one billion, five hundred eighty-one million, two hundred eleven thousand, forty-three".