31423040212004 has 24 divisors (see below), whose sum is σ = 62846307511680. Its totient is φ = 13466968572096.

The previous prime is 31423040212001. The next prime is 31423040212013. The reversal of 31423040212004 is 40021204032413.

It is not an unprimeable number, because it can be changed into a prime (31423040212001) 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, 6487064 + ... + 10243440.

It is an arithmetic number, because the mean of its divisors is an integer number (2618596146320).

Almost surely, 2^{31423040212004} is an apocalyptic number.

It is an amenable number.

31423040212004 is an abundant number, since it is smaller than the sum of its proper divisors (31423267299676).

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

31423040212004 is a wasteful number, since it uses less digits than its factorization.

31423040212004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4055147 (or 4055145 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31423040212004 its reverse (40021204032413), we get a palindrome (71444244244417).

The spelling of 31423040212004 in words is "thirty-one trillion, four hundred twenty-three billion, forty million, two hundred twelve thousand, four".