2111200102031 has 2 divisors, whose sum is σ = 2111200102032. Its totient is φ = 2111200102030.

The previous prime is 2111200102027. The next prime is 2111200102091. The reversal of 2111200102031 is 1302010021112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111200102031 - 2² = 2111200102027 is a prime.

It is a super-2 number, since 2×2111200102031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2111200101997 and 2111200102015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111200102021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055600051015 + 1055600051016.

It is an arithmetic number, because the mean of its divisors is an integer number (1055600051016).

Almost surely, 2^{2111200102031} is an apocalyptic number.

2111200102031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111200102031 is an equidigital number, since it uses as much as digits as its factorization.

2111200102031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 2111200102031 its reverse (1302010021112), we get a palindrome (3413210123143).

The spelling of 2111200102031 in words is "two trillion, one hundred eleven billion, two hundred million, one hundred two thousand, thirty-one".