2102012021003 has 2 divisors, whose sum is σ = 2102012021004. Its totient is φ = 2102012021002.

The previous prime is 2102012020939. The next prime is 2102012021009. The reversal of 2102012021003 is 3001202102012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102012021003 - 2⁶ = 2102012020939 is a prime.

It is a super-2 number, since 2×2102012021003² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2102012021009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051006010501 + 1051006010502.

It is an arithmetic number, because the mean of its divisors is an integer number (1051006010502).

Almost surely, 2^{2102012021003} is an apocalyptic number.

2102012021003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102012021003 is an equidigital number, since it uses as much as digits as its factorization.

2102012021003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2102012021003 its reverse (3001202102012), we get a palindrome (5103214123015).

The spelling of 2102012021003 in words is "two trillion, one hundred two billion, twelve million, twenty-one thousand, three".