20031031121301 has 12 divisors (see below), whose sum is σ = 28933962152940. Its totient is φ = 13353905116800.

The previous prime is 20031031121293. The next prime is 20031031121327. The reversal of 20031031121301 is 10312113013002.

20031031121301 is a `hidden beast` number, since 2 + 0 + 0 + 31 + 0 + 311 + 21 + 301 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2267764928100 + 17763266193201 = 1505910^2 + 4214649^2 .

It is not a de Polignac number, because 20031031121301 - 2³ = 20031031121293 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031031122301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8532100 + ... + 10623501.

It is an arithmetic number, because the mean of its divisors is an integer number (2411163512745).

Almost surely, 2^{20031031121301} is an apocalyptic number.

It is an amenable number.

20031031121301 is a deficient number, since it is larger than the sum of its proper divisors (8902931031639).

20031031121301 is a wasteful number, since it uses less digits than its factorization.

20031031121301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19271796 (or 19271793 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 20031031121301 its reverse (10312113013002), we get a palindrome (30343144134303).

The spelling of 20031031121301 in words is "twenty trillion, thirty-one billion, thirty-one million, one hundred twenty-one thousand, three hundred one".