20357540351 has 2 divisors, whose sum is σ = 20357540352. Its totient is φ = 20357540350.

The previous prime is 20357540347. The next prime is 20357540387. The reversal of 20357540351 is 15304575302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20357540351 - 2² = 20357540347 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20357540251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10178770175 + 10178770176.

It is an arithmetic number, because the mean of its divisors is an integer number (10178770176).

Almost surely, 2^20357540351 is an apocalyptic number.

20357540351 is a deficient number, since it is larger than the sum of its proper divisors (1).

20357540351 is an equidigital number, since it uses as much as digits as its factorization.

20357540351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 35.

The spelling of 20357540351 in words is "twenty billion, three hundred fifty-seven million, five hundred forty thousand, three hundred fifty-one".