2115531312030 has 24 divisors (see below), whose sum is σ = 5500381411512. Its totient is φ = 564141683184.

The previous prime is 2115531312007. The next prime is 2115531312031. The reversal of 2115531312030 is 302131355112.

2115531312030 is a `hidden beast` number, since 2 + 1 + 1 + 5 + 531 + 3 + 120 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2115531311985 and 2115531312003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115531312031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11752951644 + ... + 11752951823.

It is an arithmetic number, because the mean of its divisors is an integer number (229182558813).

Almost surely, 2^{2115531312030} is an apocalyptic number.

2115531312030 is an abundant number, since it is smaller than the sum of its proper divisors (3384850099482).

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

2115531312030 is a wasteful number, since it uses less digits than its factorization.

2115531312030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23505903480 (or 23505903477 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 2115531312030 its reverse (302131355112), we get a palindrome (2417662667142).

The spelling of 2115531312030 in words is "two trillion, one hundred fifteen billion, five hundred thirty-one million, three hundred twelve thousand, thirty".