31200462047 has 4 divisors (see below), whose sum is σ = 32043717816. Its totient is φ = 30357206280.

The previous prime is 31200462043. The next prime is 31200462053. The reversal of 31200462047 is 74026400213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31200462047 - 2² = 31200462043 is a prime.

It is a super-3 number, since 3×31200462047³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31200462043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421627829 + ... + 421627902.

It is an arithmetic number, because the mean of its divisors is an integer number (8010929454).

Almost surely, 2^31200462047 is an apocalyptic number.

31200462047 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

31200462047 is a deficient number, since it is larger than the sum of its proper divisors (843255769).

31200462047 is an equidigital number, since it uses as much as digits as its factorization.

31200462047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843255768.

The product of its (nonzero) digits is 8064, while the sum is 29.

The spelling of 31200462047 in words is "thirty-one billion, two hundred million, four hundred sixty-two thousand, forty-seven".