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1200320301020 = 22560016015051
BaseRepresentation
bin10001011101111000101…
…010100100011111011100
311020202020101102002101012
4101131320222210133130
5124131223444113040
62315230341434352
7152502025134161
oct21357052443734
94222211362335
101200320301020
11423064576a85
12174768a0b9b8
1389260a72c39
144214aca4068
1521352da9865
hex11778aa47dc

1200320301020 has 12 divisors (see below), whose sum is σ = 2520672632184. Its totient is φ = 480128120400.

The previous prime is 1200320301007. The next prime is 1200320301049. The reversal of 1200320301020 is 201030230021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1200320300986 and 1200320301004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30008007506 + ... + 30008007545.

It is an arithmetic number, because the mean of its divisors is an integer number (210056052682).

Almost surely, 21200320301020 is an apocalyptic number.

1200320301020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200320301020 is an abundant number, since it is smaller than the sum of its proper divisors (1320352331164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200320301020 is a wasteful number, since it uses less digits than its factorization.

1200320301020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60016015060 (or 60016015058 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1200320301020 its reverse (201030230021), we get a palindrome (1401350531041).

The spelling of 1200320301020 in words is "one trillion, two hundred billion, three hundred twenty million, three hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 60016015051 120032030102 240064060204 300080075255 600160150510 1200320301020