1051134855381 has 12 divisors (see below), whose sum is σ = 1635098664108. Its totient is φ = 646852218624.

The previous prime is 1051134855371. The next prime is 1051134855389. The reversal of 1051134855381 is 1835584311501.

1051134855381 is a `hidden beast` number, since 1 + 0 + 5 + 1 + 1 + 34 + 85 + 538 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 66336638481 + 984798216900 = 257559^2 + 992370^2 .

It is not a de Polignac number, because 1051134855381 - 2³³ = 1042544920789 is a prime.

It is a super-2 number, since 2×1051134855381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051134855389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4492029180 + ... + 4492029413.

It is an arithmetic number, because the mean of its divisors is an integer number (136258222009).

Almost surely, 2^{1051134855381} is an apocalyptic number.

It is an amenable number.

1051134855381 is a deficient number, since it is larger than the sum of its proper divisors (583963808727).

1051134855381 is a wasteful number, since it uses less digits than its factorization.

1051134855381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8984058612 (or 8984058609 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 45.

The spelling of 1051134855381 in words is "one trillion, fifty-one billion, one hundred thirty-four million, eight hundred fifty-five thousand, three hundred eighty-one".