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1202201021031 = 31931766533899
BaseRepresentation
bin10001011111101000110…
…000111100101001100111
311020221002110022120012220
4101133220300330221213
5124144101430133111
62320141124043423
7152566443033663
oct21375060745147
94227073276186
101202201021031
1142393a15383a
12174bb2833573
13894a05b600a
144228898d8a3
1521413059e06
hex117e8c3ca67

1202201021031 has 16 divisors (see below), whose sum is σ = 1692622416000. Its totient is φ = 756889623648.

The previous prime is 1202201021011. The next prime is 1202201021041. The reversal of 1202201021031 is 1301201022021.

It is not a de Polignac number, because 1202201021031 - 214 = 1202201004647 is a prime.

It is a super-2 number, since 2×12022010210312 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1202201021031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202201021011) 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, 33248881 + ... + 33285018.

It is an arithmetic number, because the mean of its divisors is an integer number (105788901000).

Almost surely, 21202201021031 is an apocalyptic number.

1202201021031 is a deficient number, since it is larger than the sum of its proper divisors (490421394969).

1202201021031 is a wasteful number, since it uses less digits than its factorization.

1202201021031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66534238.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1202201021031 its reverse (1301201022021), we get a palindrome (2503402043052).

The spelling of 1202201021031 in words is "one trillion, two hundred two billion, two hundred one million, twenty-one thousand, thirty-one".

Divisors: 1 3 19 57 317 951 6023 18069 66533899 199601697 1264144081 3792432243 21091245983 63273737949 400733673677 1202201021031