20207030107530 has 128 divisors (see below), whose sum is σ = 57244325764608. Its totient is φ = 4469526577152.

The previous prime is 20207030107489. The next prime is 20207030107567. The reversal of 20207030107530 is 3570103070202.

It is a super-3 number, since 3×20207030107530³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11622759 + ... + 13247738.

It is an arithmetic number, because the mean of its divisors is an integer number (447221295036).

Almost surely, 2^{20207030107530} is an apocalyptic number.

20207030107530 is an abundant number, since it is smaller than the sum of its proper divisors (37037295657078).

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

20207030107530 is a wasteful number, since it uses less digits than its factorization.

20207030107530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24870640.

The product of its (nonzero) digits is 8820, while the sum is 30.

Adding to 20207030107530 its reverse (3570103070202), we get a palindrome (23777133177732).

The spelling of 20207030107530 in words is "twenty trillion, two hundred seven billion, thirty million, one hundred seven thousand, five hundred thirty".