1200101000031 has 24 divisors (see below), whose sum is σ = 1781378721200. Its totient is φ = 777985347456.

The previous prime is 1200101000029. The next prime is 1200101000039. The reversal of 1200101000031 is 1300001010021.

It is not a de Polignac number, because 1200101000031 - 2¹ = 1200101000029 is a prime.

It is a super-2 number, since 2×1200101000031² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200100999977 and 1200101000022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200101000039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 494830 + ... + 1626363.

Almost surely, 2^{1200101000031} is an apocalyptic number.

1200101000031 is a deficient number, since it is larger than the sum of its proper divisors (581277721169).

1200101000031 is a wasteful number, since it uses less digits than its factorization.

1200101000031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122935 (or 2122932 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 1200101000031 its reverse (1300001010021), we get a palindrome (2500102010052).

The spelling of 1200101000031 in words is "one trillion, two hundred billion, one hundred one million, thirty-one", and thus it is an aban number.