1123112501640 has 320 divisors, whose sum is σ = 3814439428800. Its totient is φ = 296366556672.

The previous prime is 1123112501627. The next prime is 1123112501717. The reversal of 1123112501640 is 461052113211.

1123112501640 is a `hidden beast` number, since 1 + 1 + 2 + 3 + 1 + 12 + 5 + 0 + 1 + 640 = 666.

It is a super-2 number, since 2×1123112501640² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 567514171 + ... + 567516149.

It is an arithmetic number, because the mean of its divisors is an integer number (11920123215).

Almost surely, 2^{1123112501640} is an apocalyptic number.

1123112501640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123112501640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1907219714400).

1123112501640 is an abundant number, since it is smaller than the sum of its proper divisors (2691326927160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123112501640 is a wasteful number, since it uses less digits than its factorization.

1123112501640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746 (or 3733 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 1123112501640 its reverse (461052113211), we get a palindrome (1584164614851).

The spelling of 1123112501640 in words is "one trillion, one hundred twenty-three billion, one hundred twelve million, five hundred one thousand, six hundred forty".