203440408051 has 2 divisors, whose sum is σ = 203440408052. Its totient is φ = 203440408050.

The previous prime is 203440408027. The next prime is 203440408091. The reversal of 203440408051 is 150804044302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203440408051 - 2¹³ = 203440399859 is a prime.

It is not a weakly prime, because it can be changed into another prime (203440408001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101720204025 + 101720204026.

It is an arithmetic number, because the mean of its divisors is an integer number (101720204026).

Almost surely, 2^203440408051 is an apocalyptic number.

203440408051 is a deficient number, since it is larger than the sum of its proper divisors (1).

203440408051 is an equidigital number, since it uses as much as digits as its factorization.

203440408051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 31.

The spelling of 203440408051 in words is "two hundred three billion, four hundred forty million, four hundred eight thousand, fifty-one".