1515142323012 has 24 divisors (see below), whose sum is σ = 3535595294112. Its totient is φ = 505009840000.

The previous prime is 1515142323001. The next prime is 1515142323031. The reversal of 1515142323012 is 2103232415151.

It is a happy 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, 4531989 + ... + 4854812.

It is an arithmetic number, because the mean of its divisors is an integer number (147316470588).

Almost surely, 2^{1515142323012} is an apocalyptic number.

1515142323012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1515142323012 is an abundant number, since it is smaller than the sum of its proper divisors (2020452971100).

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

1515142323012 is a wasteful number, since it uses less digits than its factorization.

1515142323012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9400259 (or 9400257 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 1515142323012 its reverse (2103232415151), we get a palindrome (3618374738163).

The spelling of 1515142323012 in words is "one trillion, five hundred fifteen billion, one hundred forty-two million, three hundred twenty-three thousand, twelve".