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1200032011031 = 71272980345293
BaseRepresentation
bin10001011101100111011…
…110110101001100010111
311020201111021221102212012
4101131213132311030113
5124130131143323111
62315142002414435
7152461624535450
oct21354736651427
94221437842765
101200032011031
11422a26870497
121746a836141b
1389216115149
144212089c127
152133791048b
hex117677b5317

1200032011031 has 16 divisors (see below), whose sum is σ = 1382340993024. Its totient is φ = 1020442891104.

The previous prime is 1200032011001. The next prime is 1200032011037. The reversal of 1200032011031 is 1301102300021.

It is not a de Polignac number, because 1200032011031 - 226 = 1199964902167 is a prime.

It is a super-2 number, since 2×12000320110312 (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 = 1200032010997 and 1200032011015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200032011037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26472221 + ... + 26517513.

It is an arithmetic number, because the mean of its divisors is an integer number (86396312064).

Almost surely, 21200032011031 is an apocalyptic number.

1200032011031 is a deficient number, since it is larger than the sum of its proper divisors (182308981993).

1200032011031 is a wasteful number, since it uses less digits than its factorization.

1200032011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75230.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1200032011031 its reverse (1301102300021), we get a palindrome (2501134311052).

The spelling of 1200032011031 in words is "one trillion, two hundred billion, thirty-two million, eleven thousand, thirty-one".

Divisors: 1 7 127 889 29803 45293 208621 317051 3784981 5752211 26494867 40265477 1349867279 9449070953 171433144433 1200032011031