1001455112403 has 40 divisors (see below), whose sum is σ = 1587437913600. Its totient is φ = 627000549120.

The previous prime is 1001455112377. The next prime is 1001455112429. The reversal of 1001455112403 is 3042115541001.

1001455112403 is a `hidden beast` number, since 1 + 0 + 0 + 145 + 5 + 112 + 403 = 666.

It is an interprime number because it is at equal distance from previous prime (1001455112377) and next prime (1001455112429).

It is not a de Polignac number, because 1001455112403 - 2²⁵ = 1001421557971 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1001455112503) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 154003 + ... + 1423596.

It is an arithmetic number, because the mean of its divisors is an integer number (39685947840).

Almost surely, 2^{1001455112403} is an apocalyptic number.

1001455112403 is a deficient number, since it is larger than the sum of its proper divisors (585982801197).

1001455112403 is a wasteful number, since it uses less digits than its factorization.

1001455112403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578089 (or 1578080 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 1001455112403 in words is "one trillion, one billion, four hundred fifty-five million, one hundred twelve thousand, four hundred three".