20030131311 has 8 divisors (see below), whose sum is σ = 26707604784. Its totient is φ = 13353039360.

The previous prime is 20030131259. The next prime is 20030131327. The reversal of 20030131311 is 11313103002.

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

It is not a de Polignac number, because 20030131311 - 2⁷ = 20030131183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030131351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66255 + ... + 210831.

It is an arithmetic number, because the mean of its divisors is an integer number (3338450598).

Almost surely, 2^20030131311 is an apocalyptic number.

20030131311 is a deficient number, since it is larger than the sum of its proper divisors (6677473473).

20030131311 is a wasteful number, since it uses less digits than its factorization.

20030131311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190761.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 20030131311 its reverse (11313103002), we get a palindrome (31343234313).

The spelling of 20030131311 in words is "twenty billion, thirty million, one hundred thirty-one thousand, three hundred eleven".