2621211116103 has 24 divisors (see below), whose sum is σ = 3926686108800. Its totient is φ = 1747357084728.

The previous prime is 2621211116101. The next prime is 2621211116129. The reversal of 2621211116103 is 3016111121262.

2621211116103 is a `hidden beast` number, since 2 + 6 + 21 + 2 + 11 + 11 + 610 + 3 = 666.

It is not a de Polignac number, because 2621211116103 - 2¹ = 2621211116101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621211116101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3354478 + ... + 4061396.

It is an arithmetic number, because the mean of its divisors is an integer number (163611921200).

Almost surely, 2^{2621211116103} is an apocalyptic number.

2621211116103 is a deficient number, since it is larger than the sum of its proper divisors (1305474992697).

2621211116103 is an equidigital number, since it uses as much as digits as its factorization.

2621211116103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722193 (or 722181 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

Adding to 2621211116103 its reverse (3016111121262), we get a palindrome (5637322237365).

The spelling of 2621211116103 in words is "two trillion, six hundred twenty-one billion, two hundred eleven million, one hundred sixteen thousand, one hundred three".