31033213211012 has 12 divisors (see below), whose sum is σ = 54313937136396. Its totient is φ = 15514945457760.

The previous prime is 31033213210999. The next prime is 31033213211069. The reversal of 31033213211012 is 21011231233013.

It can be written as a sum of positive squares in 2 ways, for example, as 5724506048836 + 25308707162176 = 2392594^2 + 5030776^2 .

It is a super-3 number, since 3×31033213211012³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415244903 + ... + 415319630.

It is an arithmetic number, because the mean of its divisors is an integer number (4526161428033).

Almost surely, 2^{31033213211012} is an apocalyptic number.

It is an amenable number.

31033213211012 is a deficient number, since it is larger than the sum of its proper divisors (23280723925384).

31033213211012 is a wasteful number, since it uses less digits than its factorization.

31033213211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830573878 (or 830573876 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 31033213211012 its reverse (21011231233013), we get a palindrome (52044444444025).

The spelling of 31033213211012 in words is "thirty-one trillion, thirty-three billion, two hundred thirteen million, two hundred eleven thousand, twelve".