20214043357 has 2 divisors, whose sum is σ = 20214043358. Its totient is φ = 20214043356.

The previous prime is 20214043271. The next prime is 20214043379. The reversal of 20214043357 is 75334041202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10145727076 + 10068316281 = 100726^2 + 100341^2 .

It is a cyclic number.

It is not a de Polignac number, because 20214043357 - 2²⁷ = 20079825629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20214043397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10107021678 + 10107021679.

It is an arithmetic number, because the mean of its divisors is an integer number (10107021679).

Almost surely, 2^20214043357 is an apocalyptic number.

It is an amenable number.

20214043357 is a deficient number, since it is larger than the sum of its proper divisors (1).

20214043357 is an equidigital number, since it uses as much as digits as its factorization.

20214043357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 31.

Adding to 20214043357 its reverse (75334041202), we get a palindrome (95548084559).

The spelling of 20214043357 in words is "twenty billion, two hundred fourteen million, forty-three thousand, three hundred fifty-seven".