20231031461 has 8 divisors (see below), whose sum is σ = 20605204704. Its totient is φ = 19859963760.

The previous prime is 20231031397. The next prime is 20231031463. The reversal of 20231031461 is 16413013202.

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 20231031461 - 2⁶ = 20231031397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231031463) 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, 763235 + ... + 789296.

It is an arithmetic number, because the mean of its divisors is an integer number (2575650588).

Almost surely, 2^20231031461 is an apocalyptic number.

It is an amenable number.

20231031461 is a deficient number, since it is larger than the sum of its proper divisors (374173243).

20231031461 is a wasteful number, since it uses less digits than its factorization.

20231031461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552771.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20231031461 its reverse (16413013202), we get a palindrome (36644044663).

The spelling of 20231031461 in words is "twenty billion, two hundred thirty-one million, thirty-one thousand, four hundred sixty-one".