31423090000 has 50 divisors (see below), whose sum is σ = 76078467410. Its totient is φ = 12569232000.

The previous prime is 31423089991. The next prime is 31423090019. The reversal of 31423090000 is 9032413.

It can be written as a sum of positive squares in 5 ways, for example, as 3465912384 + 27957177616 = 58872^2 + 167204^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1561155 + ... + 1581154.

Almost surely, 2^31423090000 is an apocalyptic number.

It is an amenable number.

31423090000 is an abundant number, since it is smaller than the sum of its proper divisors (44655377410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31423090000 is an equidigital number, since it uses as much as digits as its factorization.

31423090000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3142337 (or 3142316 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The spelling of 31423090000 in words is "thirty-one billion, four hundred twenty-three million, ninety thousand".