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1220032030031 = 7823155954497
BaseRepresentation
bin10001110000001111100…
…100110110010101001111
311022122010010111200011122
4101300033210312111033
5124442111144430111
62332250332311155
7154100350101653
oct21601744662517
94278103450148
101220032030031
1143045a302811
1217854a3124bb
138b0827c8609
144309ab8aa63
1521b08681cdb
hex11c0f93654f

1220032030031 has 4 divisors (see below), whose sum is σ = 1220187992352. Its totient is φ = 1219876067712.

The previous prime is 1220032030003. The next prime is 1220032030037. The reversal of 1220032030031 is 1300302300221.

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 1220032030031 - 26 = 1220032029967 is a prime.

It is a super-2 number, since 2×12200320300312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220032029991 and 1220032030009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220032030037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77969426 + ... + 77985071.

It is an arithmetic number, because the mean of its divisors is an integer number (305046998088).

Almost surely, 21220032030031 is an apocalyptic number.

1220032030031 is a deficient number, since it is larger than the sum of its proper divisors (155962321).

1220032030031 is an equidigital number, since it uses as much as digits as its factorization.

1220032030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155962320.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 1220032030031 its reverse (1300302300221), we get a palindrome (2520334330252).

The spelling of 1220032030031 in words is "one trillion, two hundred twenty billion, thirty-two million, thirty thousand, thirty-one".

Divisors: 1 7823 155954497 1220032030031