1211002030031 has 8 divisors (see below), whose sum is σ = 1277855708400. Its totient is φ = 1144460024640.

The previous prime is 1211002030013. The next prime is 1211002030037. The reversal of 1211002030031 is 1300302001121.

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 1211002030031 - 2³⁸ = 936124123087 is a prime.

It is a super-2 number, since 2×1211002030031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211002029988 and 1211002030015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211002030037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77910260 + ... + 77925801.

It is an arithmetic number, because the mean of its divisors is an integer number (159731963550).

Almost surely, 2^{1211002030031} is an apocalyptic number.

1211002030031 is a deficient number, since it is larger than the sum of its proper divisors (66853678369).

1211002030031 is a wasteful number, since it uses less digits than its factorization.

1211002030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155836489.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1211002030031 its reverse (1300302001121), we get a palindrome (2511304031152).

The spelling of 1211002030031 in words is "one trillion, two hundred eleven billion, two million, thirty thousand, thirty-one".