20031246461 has 8 divisors (see below), whose sum is σ = 20078385600. Its totient is φ = 19984154400.

The previous prime is 20031246439. The next prime is 20031246509. The reversal of 20031246461 is 16464213002.

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 20031246461 - 2⁶ = 20031246397 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 (20031216461) 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, 926270 + ... + 947648.

It is an arithmetic number, because the mean of its divisors is an integer number (2509798200).

Almost surely, 2^20031246461 is an apocalyptic number.

It is an amenable number.

20031246461 is a deficient number, since it is larger than the sum of its proper divisors (47139139).

20031246461 is a wasteful number, since it uses less digits than its factorization.

20031246461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23539.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 20031246461 its reverse (16464213002), we get a palindrome (36495459463).

The spelling of 20031246461 in words is "twenty billion, thirty-one million, two hundred forty-six thousand, four hundred sixty-one".