20053151243 has 8 divisors (see below), whose sum is σ = 20963718816. Its totient is φ = 19145808000.

The previous prime is 20053151191. The next prime is 20053151249. The reversal of 20053151243 is 34215135002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20053151243 - 2¹⁰ = 20053150219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20053151249) 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, 793358 + ... + 818243.

It is an arithmetic number, because the mean of its divisors is an integer number (2620464852).

Almost surely, 2^20053151243 is an apocalyptic number.

20053151243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20053151243 is a deficient number, since it is larger than the sum of its proper divisors (910567573).

20053151243 is a wasteful number, since it uses less digits than its factorization.

20053151243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612165.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 20053151243 its reverse (34215135002), we get a palindrome (54268286245).

The spelling of 20053151243 in words is "twenty billion, fifty-three million, one hundred fifty-one thousand, two hundred forty-three".