204311552051 has 2 divisors, whose sum is σ = 204311552052. Its totient is φ = 204311552050.

The previous prime is 204311552009. The next prime is 204311552069. The reversal of 204311552051 is 150255113402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204311552051 is a prime.

It is not a weakly prime, because it can be changed into another prime (204311552351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102155776025 + 102155776026.

It is an arithmetic number, because the mean of its divisors is an integer number (102155776026).

Almost surely, 2^204311552051 is an apocalyptic number.

204311552051 is a deficient number, since it is larger than the sum of its proper divisors (1).

204311552051 is an equidigital number, since it uses as much as digits as its factorization.

204311552051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 204311552051 its reverse (150255113402), we get a palindrome (354566665453).

The spelling of 204311552051 in words is "two hundred four billion, three hundred eleven million, five hundred fifty-two thousand, fifty-one".