1123451545040 has 40 divisors (see below), whose sum is σ = 2849481648288. Its totient is φ = 408527834240.

The previous prime is 1123451545019. The next prime is 1123451545057. The reversal of 1123451545040 is 405451543211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638323862 + ... + 638325621.

Almost surely, 2^{1123451545040} is an apocalyptic number.

1123451545040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123451545040 is an abundant number, since it is smaller than the sum of its proper divisors (1726030103248).

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

1123451545040 is a wasteful number, since it uses less digits than its factorization.

1123451545040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276649507 (or 1276649501 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 1123451545040 in words is "one trillion, one hundred twenty-three billion, four hundred fifty-one million, five hundred forty-five thousand, forty".