31020200047 has 2 divisors, whose sum is σ = 31020200048. Its totient is φ = 31020200046.

The previous prime is 31020200023. The next prime is 31020200083. The reversal of 31020200047 is 74000202013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31020200047 - 2¹⁹ = 31019675759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31020199997 and 31020200033.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31020200017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15510100023 + 15510100024.

It is an arithmetic number, because the mean of its divisors is an integer number (15510100024).

Almost surely, 2^31020200047 is an apocalyptic number.

31020200047 is a deficient number, since it is larger than the sum of its proper divisors (1).

31020200047 is an equidigital number, since it uses as much as digits as its factorization.

31020200047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 19.

The spelling of 31020200047 in words is "thirty-one billion, twenty million, two hundred thousand, forty-seven".