20303132031 has 80 divisors (see below), whose sum is σ = 37749096000. Its totient is φ = 10588672512.

The previous prime is 20303132027. The next prime is 20303132077. The reversal of 20303132031 is 13023130302.

It is not a de Polignac number, because 20303132031 - 2² = 20303132027 is a prime.

It is a super-2 number, since 2×20303132031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20303131995 and 20303132013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303132131) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 640545 + ... + 671493.

It is an arithmetic number, because the mean of its divisors is an integer number (471863700).

Almost surely, 2^20303132031 is an apocalyptic number.

20303132031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20303132031 is a deficient number, since it is larger than the sum of its proper divisors (17445963969).

20303132031 is a wasteful number, since it uses less digits than its factorization.

20303132031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31070 (or 31061 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20303132031 its reverse (13023130302), we get a palindrome (33326262333).

The spelling of 20303132031 in words is "twenty billion, three hundred three million, one hundred thirty-two thousand, thirty-one".