20120023461 has 8 divisors (see below), whose sum is σ = 26832521824. Its totient is φ = 13410437040.

The previous prime is 20120023433. The next prime is 20120023463. The reversal of 20120023461 is 16432002102.

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

It is not a de Polignac number, because 20120023461 - 2²² = 20115829157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120023463) 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, 711811 + ... + 739536.

It is an arithmetic number, because the mean of its divisors is an integer number (3354065228).

Almost surely, 2^20120023461 is an apocalyptic number.

It is an amenable number.

20120023461 is a deficient number, since it is larger than the sum of its proper divisors (6712498363).

20120023461 is a wasteful number, since it uses less digits than its factorization.

20120023461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455971.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20120023461 its reverse (16432002102), we get a palindrome (36552025563).

The spelling of 20120023461 in words is "twenty billion, one hundred twenty million, twenty-three thousand, four hundred sixty-one".