31542003520212 has 48 divisors (see below), whose sum is σ = 73977156792000. Its totient is φ = 10459845107712.

The previous prime is 31542003520147. The next prime is 31542003520267. The reversal of 31542003520212 is 21202530024513.

It is a self number, because there is not a number n which added to its sum of digits gives 31542003520212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31417428 + ... + 32405844.

It is an arithmetic number, because the mean of its divisors is an integer number (1541190766500).

Almost surely, 2^{31542003520212} is an apocalyptic number.

It is an amenable number.

31542003520212 is an abundant number, since it is smaller than the sum of its proper divisors (42435153271788).

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

31542003520212 is a wasteful number, since it uses less digits than its factorization.

31542003520212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002120 (or 1002118 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 31542003520212 its reverse (21202530024513), we get a palindrome (52744533544725).

The spelling of 31542003520212 in words is "thirty-one trillion, five hundred forty-two billion, three million, five hundred twenty thousand, two hundred twelve".