1231530153002 has 8 divisors (see below), whose sum is σ = 1847552283936. Its totient is φ = 615679391692.

The previous prime is 1231530153001. The next prime is 1231530153017. The reversal of 1231530153002 is 2003510351321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1231530153002² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231530153001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42824438 + ... + 42853185.

It is an arithmetic number, because the mean of its divisors is an integer number (230944035492).

Almost surely, 2^{1231530153002} is an apocalyptic number.

1231530153002 is a deficient number, since it is larger than the sum of its proper divisors (616022130934).

1231530153002 is an equidigital number, since it uses as much as digits as its factorization.

1231530153002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85684812.

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 1231530153002 in words is "one trillion, two hundred thirty-one billion, five hundred thirty million, one hundred fifty-three thousand, two".