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1002021103131 = 31921317384429
BaseRepresentation
bin11101001010011010001…
…11001010011000011011
310112210101120111002202120
432211031013022120123
5112404114400300011
62044153325432323
7132252005562666
oct16451507123033
93483346432676
101002021103131
11356a55876664
12142246a0b6a3
137364ac21459
14366d8a366dd
151b0e8de6a06
hexe94d1ca61b

1002021103131 has 8 divisors (see below), whose sum is σ = 1336097752080. Its totient is φ = 667979261472.

The previous prime is 1002021103129. The next prime is 1002021103147. The reversal of 1002021103131 is 1313011202001.

It is a happy number.

1002021103131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1002021103131 - 21 = 1002021103129 is a prime.

It is a super-2 number, since 2×10020211031312 (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 1002021103131.

It is not an unprimeable number, because it can be changed into a prime (1002021103631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8634576 + ... + 8749853.

It is an arithmetic number, because the mean of its divisors is an integer number (167012219010).

Almost surely, 21002021103131 is an apocalyptic number.

1002021103131 is a deficient number, since it is larger than the sum of its proper divisors (334076648949).

1002021103131 is a wasteful number, since it uses less digits than its factorization.

1002021103131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17403645.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1002021103131 its reverse (1313011202001), we get a palindrome (2315032305132).

The spelling of 1002021103131 in words is "one trillion, two billion, twenty-one million, one hundred three thousand, one hundred thirty-one".

Divisors: 1 3 19213 57639 17384429 52153287 334007034377 1002021103131