20514123031 has 8 divisors (see below), whose sum is σ = 20577647360. Its totient is φ = 20450640888.

The previous prime is 20514123001. The next prime is 20514123061. The reversal of 20514123031 is 13032141502.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20514123001) and next prime (20514123061).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20514123031 - 2⁷ = 20514122903 is a prime.

It is a super-2 number, since 2×20514123031² (a number of 21 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 = 20514122993 and 20514123011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514123001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1160860 + ... + 1178398.

It is an arithmetic number, because the mean of its divisors is an integer number (2572205920).

Almost surely, 2^20514123031 is an apocalyptic number.

20514123031 is a deficient number, since it is larger than the sum of its proper divisors (63524329).

20514123031 is a wasteful number, since it uses less digits than its factorization.

20514123031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21093.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 20514123031 its reverse (13032141502), we get a palindrome (33546264533).

The spelling of 20514123031 in words is "twenty billion, five hundred fourteen million, one hundred twenty-three thousand, thirty-one".