61238399003 has 2 divisors, whose sum is σ = 61238399004. Its totient is φ = 61238399002.

The previous prime is 61238398939. The next prime is 61238399009. The reversal of 61238399003 is 30099383216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61238399003 - 2⁶ = 61238398939 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (61238399009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30619199501 + 30619199502.

It is an arithmetic number, because the mean of its divisors is an integer number (30619199502).

Almost surely, 2^61238399003 is an apocalyptic number.

61238399003 is a deficient number, since it is larger than the sum of its proper divisors (1).

61238399003 is an equidigital number, since it uses as much as digits as its factorization.

61238399003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 61238399003 in words is "sixty-one billion, two hundred thirty-eight million, three hundred ninety-nine thousand, three".