1002011001031 has 8 divisors (see below), whose sum is σ = 1045600552800. Its totient is φ = 958423437312.

The previous prime is 1002011001029. The next prime is 1002011001037. The reversal of 1002011001031 is 1301001102001.

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

It is a cyclic number.

It is not a de Polignac number, because 1002011001031 - 2¹ = 1002011001029 is a prime.

It is a super-2 number, since 2×1002011001031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1002011000999 and 1002011001017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002011001037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582895 + ... + 1530943.

It is an arithmetic number, because the mean of its divisors is an integer number (130700069100).

Almost surely, 2^{1002011001031} is an apocalyptic number.

1002011001031 is a deficient number, since it is larger than the sum of its proper divisors (43589551769).

1002011001031 is an equidigital number, since it uses as much as digits as its factorization.

1002011001031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994025.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 1002011001031 its reverse (1301001102001), we get a palindrome (2303012103032).

The spelling of 1002011001031 in words is "one trillion, two billion, eleven million, one thousand, thirty-one".