1045145423112 has 256 divisors, whose sum is σ = 3375082598400. Its totient is φ = 262504488960.

The previous prime is 1045145423099. The next prime is 1045145423117. The reversal of 1045145423112 is 2113245415401.

It is not an unprimeable number, because it can be changed into a prime (1045145423117) 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 63 ways as a sum of consecutive naturals, for example, 3717108 + ... + 3988380.

It is an arithmetic number, because the mean of its divisors is an integer number (13183916400).

Almost surely, 2^{1045145423112} is an apocalyptic number.

1045145423112 is a gapful number since it is divisible by the number (12) 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 1045145423112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1687541299200).

1045145423112 is an abundant number, since it is smaller than the sum of its proper divisors (2329937175288).

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

1045145423112 is a wasteful number, since it uses less digits than its factorization.

1045145423112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271396 (or 271392 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 1045145423112 in words is "one trillion, forty-five billion, one hundred forty-five million, four hundred twenty-three thousand, one hundred twelve".