20020112112031 has 4 divisors (see below), whose sum is σ = 20020228253872. Its totient is φ = 20019995970192.

The previous prime is 20020112111971. The next prime is 20020112112113. The reversal of 20020112112031 is 13021121102002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20020112112031 - 2⁴¹ = 17821088856479 is a prime.

It is a super-2 number, since 2×20020112112031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020112111996 and 20020112112014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020112112331) 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, 57811971 + ... + 58157236.

It is an arithmetic number, because the mean of its divisors is an integer number (5005057063468).

Almost surely, 2^{20020112112031} is an apocalyptic number.

20020112112031 is a deficient number, since it is larger than the sum of its proper divisors (116141841).

20020112112031 is a wasteful number, since it uses less digits than its factorization.

20020112112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116141840.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20020112112031 its reverse (13021121102002), we get a palindrome (33041233214033).

The spelling of 20020112112031 in words is "twenty trillion, twenty billion, one hundred twelve million, one hundred twelve thousand, thirty-one".