20030123121231 has 8 divisors (see below), whose sum is σ = 28277820877104. Its totient is φ = 12567920389760.

The previous prime is 20030123121223. The next prime is 20030123121293. The reversal of 20030123121231 is 13212132103002.

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 20030123121231 - 2³ = 20030123121223 is a prime.

It is a super-2 number, since 2×20030123121231² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20030123121198 and 20030123121207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030123125231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196373756040 + ... + 196373756141.

It is an arithmetic number, because the mean of its divisors is an integer number (3534727609638).

Almost surely, 2^{20030123121231} is an apocalyptic number.

20030123121231 is a deficient number, since it is larger than the sum of its proper divisors (8247697755873).

20030123121231 is a wasteful number, since it uses less digits than its factorization.

20030123121231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392747512201.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20030123121231 its reverse (13212132103002), we get a palindrome (33242255224233).

The spelling of 20030123121231 in words is "twenty trillion, thirty billion, one hundred twenty-three million, one hundred twenty-one thousand, two hundred thirty-one".