2001423015 has 12 divisors (see below), whose sum is σ = 3469133304. Its totient is φ = 1067425584.

The previous prime is 2001423001. The next prime is 2001423029. The reversal of 2001423015 is 5103241002.

It is an interprime number because it is at equal distance from previous prime (2001423001) and next prime (2001423029).

It is not a de Polignac number, because 2001423015 - 2⁷ = 2001422887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22237989 + ... + 22238078.

It is an arithmetic number, because the mean of its divisors is an integer number (289094442).

Almost surely, 2^2001423015 is an apocalyptic number.

2001423015 is a deficient number, since it is larger than the sum of its proper divisors (1467710289).

2001423015 is a wasteful number, since it uses less digits than its factorization.

2001423015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44476078 (or 44476075 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2001423015 is about 44737.2665123832. The cubic root of 2001423015 is about 1260.2197934788.

Adding to 2001423015 its reverse (5103241002), we get a palindrome (7104664017).

The spelling of 2001423015 in words is "two billion, one million, four hundred twenty-three thousand, fifteen".