20530284701237 has 4 divisors (see below), whose sum is σ = 21192551949696. Its totient is φ = 19868017452780.

The previous prime is 20530284701233. The next prime is 20530284701249. The reversal of 20530284701237 is 73210748203502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20530284701237 - 2² = 20530284701233 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20530284701231) 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, 331133624183 + ... + 331133624244.

It is an arithmetic number, because the mean of its divisors is an integer number (5298137987424).

Almost surely, 2^{20530284701237} is an apocalyptic number.

It is an amenable number.

20530284701237 is a deficient number, since it is larger than the sum of its proper divisors (662267248459).

20530284701237 is an equidigital number, since it uses as much as digits as its factorization.

20530284701237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662267248458.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 20530284701237 in words is "twenty trillion, five hundred thirty billion, two hundred eighty-four million, seven hundred one thousand, two hundred thirty-seven".