31329308019 has 8 divisors (see below), whose sum is σ = 42344635792. Its totient is φ = 20600092800.

The previous prime is 31329307991. The next prime is 31329308027. The reversal of 31329308019 is 91080392313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31329308019 - 2¹¹ = 31329305971 is a prime.

It is a super-2 number, since 2×31329308019² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31329308119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71527882 + ... + 71528319.

It is an arithmetic number, because the mean of its divisors is an integer number (5293079474).

Almost surely, 2^31329308019 is an apocalyptic number.

31329308019 is a deficient number, since it is larger than the sum of its proper divisors (11015327773).

31329308019 is a wasteful number, since it uses less digits than its factorization.

31329308019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143056277.

The product of its (nonzero) digits is 34992, while the sum is 39.

The spelling of 31329308019 in words is "thirty-one billion, three hundred twenty-nine million, three hundred eight thousand, nineteen".