20401631303 has 4 divisors (see below), whose sum is σ = 21601727280. Its totient is φ = 19201535328.

The previous prime is 20401631279. The next prime is 20401631333. The reversal of 20401631303 is 30313610402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20401631303 - 2¹⁰ = 20401630279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20401631333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600047963 + ... + 600047996.

It is an arithmetic number, because the mean of its divisors is an integer number (5400431820).

Almost surely, 2^20401631303 is an apocalyptic number.

20401631303 is a deficient number, since it is larger than the sum of its proper divisors (1200095977).

20401631303 is a wasteful number, since it uses less digits than its factorization.

20401631303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200095976.

The product of its (nonzero) digits is 1296, while the sum is 23.

The spelling of 20401631303 in words is "twenty billion, four hundred one million, six hundred thirty-one thousand, three hundred three".