1123174135081 has 32 divisors (see below), whose sum is σ = 1239571952640. Its totient is φ = 1014114157056.

The previous prime is 1123174135063. The next prime is 1123174135121. The reversal of 1123174135081 is 1805314713211.

It is not a de Polignac number, because 1123174135081 - 2¹⁷ = 1123174004009 is a prime.

It is a super-2 number, since 2×1123174135081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123174135081.

It is not an unprimeable number, because it can be changed into a prime (1123174165081) 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, 29354895 + ... + 29393131.

It is an arithmetic number, because the mean of its divisors is an integer number (38736623520).

Almost surely, 2^{1123174135081} is an apocalyptic number.

It is an amenable number.

1123174135081 is a deficient number, since it is larger than the sum of its proper divisors (116397817559).

1123174135081 is a wasteful number, since it uses less digits than its factorization.

1123174135081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39273.

The product of its (nonzero) digits is 20160, while the sum is 37.

Adding to 1123174135081 its reverse (1805314713211), we get a palindrome (2928488848292).

The spelling of 1123174135081 in words is "one trillion, one hundred twenty-three billion, one hundred seventy-four million, one hundred thirty-five thousand, eighty-one".