215030243530 has 16 divisors (see below), whose sum is σ = 387060123240. Its totient is φ = 86010834112.

The previous prime is 215030243513. The next prime is 215030243531. The reversal of 215030243530 is 35342030512.

It can be written as a sum of positive squares in 4 ways, for example, as 68036983921 + 146993259609 = 260839^2 + 383397^2 .

It is a super-2 number, since 2×215030243530² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (215030243531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884916 + ... + 1101424.

Almost surely, 2^215030243530 is an apocalyptic number.

215030243530 is a deficient number, since it is larger than the sum of its proper divisors (172029879710).

215030243530 is a wasteful number, since it uses less digits than its factorization.

215030243530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315833.

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 215030243530 in words is "two hundred fifteen billion, thirty million, two hundred forty-three thousand, five hundred thirty".