31103012031322 has 48 divisors (see below), whose sum is σ = 59211722521728. Its totient is φ = 12116754861120.

The previous prime is 31103012031319. The next prime is 31103012031407. The reversal of 31103012031322 is 22313021030113.

It is a super-2 number, since 2×31103012031322² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 31103012031293 and 31103012031302.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8520223 + ... + 11610349.

It is an arithmetic number, because the mean of its divisors is an integer number (1233577552536).

Almost surely, 2^{31103012031322} is an apocalyptic number.

31103012031322 is a deficient number, since it is larger than the sum of its proper divisors (28108710490406).

31103012031322 is a wasteful number, since it uses less digits than its factorization.

31103012031322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099491 (or 3099484 counting only the distinct ones).

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

Adding to 31103012031322 its reverse (22313021030113), we get a palindrome (53416033061435).

The spelling of 31103012031322 in words is "thirty-one trillion, one hundred three billion, twelve million, thirty-one thousand, three hundred twenty-two".