31535320105412 has 12 divisors (see below), whose sum is σ = 55188310613520. Its totient is φ = 15767231358696.

The previous prime is 31535320105411. The next prime is 31535320105423. The reversal of 31535320105412 is 21450102353513.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31535320105411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107007962 + ... + 107302257.

It is an arithmetic number, because the mean of its divisors is an integer number (4599025884460).

Almost surely, 2^{31535320105412} is an apocalyptic number.

It is an amenable number.

31535320105412 is a deficient number, since it is larger than the sum of its proper divisors (23652990508108).

31535320105412 is a wasteful number, since it uses less digits than its factorization.

31535320105412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214347010 (or 214347008 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 31535320105412 its reverse (21450102353513), we get a palindrome (52985422458925).

The spelling of 31535320105412 in words is "thirty-one trillion, five hundred thirty-five billion, three hundred twenty million, one hundred five thousand, four hundred twelve".