31234019999 has 16 divisors (see below), whose sum is σ = 39259788288. Its totient is φ = 24186827232.

The previous prime is 31234019969. The next prime is 31234020019. The reversal of 31234019999 is 99991043213.

It is a cyclic number.

It is not a de Polignac number, because 31234019999 - 2¹² = 31234015903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31234019909) 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 15 ways as a sum of consecutive naturals, for example, 3647117 + ... + 3655670.

It is an arithmetic number, because the mean of its divisors is an integer number (2453736768).

Almost surely, 2^31234019999 is an apocalyptic number.

31234019999 is a deficient number, since it is larger than the sum of its proper divisors (8025768289).

31234019999 is a wasteful number, since it uses less digits than its factorization.

31234019999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7302854.

The product of its (nonzero) digits is 472392, while the sum is 50.

The spelling of 31234019999 in words is "thirty-one billion, two hundred thirty-four million, nineteen thousand, nine hundred ninety-nine".