31420120112 has 20 divisors (see below), whose sum is σ = 61609936920. Its totient is φ = 15520781568.

The previous prime is 31420120049. The next prime is 31420120129. The reversal of 31420120112 is 21102102413.

It is a super-4 number, since 4×31420120112⁴ (a number of 43 digits) contains 4444 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, 11828537 + ... + 11831192.

It is an arithmetic number, because the mean of its divisors is an integer number (3080496846).

Almost surely, 2^31420120112 is an apocalyptic number.

It is an amenable number.

31420120112 is a deficient number, since it is larger than the sum of its proper divisors (30189816808).

31420120112 is a wasteful number, since it uses less digits than its factorization.

31420120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23659820 (or 23659814 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 31420120112 its reverse (21102102413), we get a palindrome (52522222525).

The spelling of 31420120112 in words is "thirty-one billion, four hundred twenty million, one hundred twenty thousand, one hundred twelve".