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1030621401223 = 2311445963393
BaseRepresentation
bin11101111111101011101…
…00101001000010000111
310122112012202222210002021
432333311310221002013
5113341203034314343
62105243321224011
7134313521240161
oct16776564510207
93575182883067
101030621401223
113680a1a04957
121478a9032007
137625831066b
1437c4d209931
151bc1ebd90ed
hexeff5d29087

1030621401223 has 4 divisors (see below), whose sum is σ = 1031067366928. Its totient is φ = 1030175435520.

The previous prime is 1030621401157. The next prime is 1030621401263. The reversal of 1030621401223 is 3221041260301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1030621401223 - 213 = 1030621393031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030621401263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222979386 + ... + 222984007.

It is an arithmetic number, because the mean of its divisors is an integer number (257766841732).

Almost surely, 21030621401223 is an apocalyptic number.

1030621401223 is a deficient number, since it is larger than the sum of its proper divisors (445965705).

1030621401223 is an equidigital number, since it uses as much as digits as its factorization.

1030621401223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445965704.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1030621401223 its reverse (3221041260301), we get a palindrome (4251662661524).

The spelling of 1030621401223 in words is "one trillion, thirty billion, six hundred twenty-one million, four hundred one thousand, two hundred twenty-three".

Divisors: 1 2311 445963393 1030621401223