2111123233403 has 2 divisors, whose sum is σ = 2111123233404. Its totient is φ = 2111123233402.

The previous prime is 2111123233399. The next prime is 2111123233537. The reversal of 2111123233403 is 3043323211112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111123233403 - 2² = 2111123233399 is a prime.

It is a super-2 number, since 2×2111123233403² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2111123232403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055561616701 + 1055561616702.

It is an arithmetic number, because the mean of its divisors is an integer number (1055561616702).

Almost surely, 2^{2111123233403} is an apocalyptic number.

2111123233403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111123233403 is an equidigital number, since it uses as much as digits as its factorization.

2111123233403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 2111123233403 its reverse (3043323211112), we get a palindrome (5154446444515).

The spelling of 2111123233403 in words is "two trillion, one hundred eleven billion, one hundred twenty-three million, two hundred thirty-three thousand, four hundred three".