20143123031 has 8 divisors (see below), whose sum is σ = 20190558960. Its totient is φ = 20095733632.

The previous prime is 20143123019. The next prime is 20143123037. The reversal of 20143123031 is 13032134102.

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 20143123031 - 2¹⁰ = 20143122007 is a prime.

It is a super-2 number, since 2×20143123031² (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 = 20143122994 and 20143123012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20143123037) 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, 945980 + ... + 967038.

It is an arithmetic number, because the mean of its divisors is an integer number (2523819870).

Almost surely, 2^20143123031 is an apocalyptic number.

20143123031 is a deficient number, since it is larger than the sum of its proper divisors (47435929).

20143123031 is a wasteful number, since it uses less digits than its factorization.

20143123031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23265.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20143123031 its reverse (13032134102), we get a palindrome (33175257133).

The spelling of 20143123031 in words is "twenty billion, one hundred forty-three million, one hundred twenty-three thousand, thirty-one".