621051103 has 2 divisors, whose sum is σ = 621051104. Its totient is φ = 621051102.

The previous prime is 621051029. The next prime is 621051131. The reversal of 621051103 is 301150126.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-621051103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (621051173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310525551 + 310525552.

It is an arithmetic number, because the mean of its divisors is an integer number (310525552).

Almost surely, 2^621051103 is an apocalyptic number.

621051103 is a deficient number, since it is larger than the sum of its proper divisors (1).

621051103 is an equidigital number, since it uses as much as digits as its factorization.

621051103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 621051103 is about 24920.8969140358. The cubic root of 621051103 is about 853.1834959117.

The spelling of 621051103 in words is "six hundred twenty-one million, fifty-one thousand, one hundred three".