101030551 has 2 divisors, whose sum is σ = 101030552. Its totient is φ = 101030550.

The previous prime is 101030539. The next prime is 101030557. The reversal of 101030551 is 155030101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101030551 - 2¹³ = 101022359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101030557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50515275 + 50515276.

It is an arithmetic number, because the mean of its divisors is an integer number (50515276).

Almost surely, 2^101030551 is an apocalyptic number.

101030551 is a deficient number, since it is larger than the sum of its proper divisors (1).

101030551 is an equidigital number, since it uses as much as digits as its factorization.

101030551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 101030551 is about 10051.3954752562. The cubic root of 101030551 is about 465.7479019204.

Adding to 101030551 its reverse (155030101), we get a palindrome (256060652).

The spelling of 101030551 in words is "one hundred one million, thirty thousand, five hundred fifty-one".