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1020213110031 = 3881386005717
BaseRepresentation
bin11101101100010010111…
…00001010010100001111
310121112100101221210201220
432312021130022110033
5113203344024010111
62100402431334423
7133464555231663
oct16661134122417
93545311853656
101020213110031
11363740781705
12145883381413
1375289b6aa8b
1437542b648a3
151b81107ae06
hexed8970a50f

1020213110031 has 8 divisors (see below), whose sum is σ = 1361828173104. Its totient is φ = 679370060160.

The previous prime is 1020213110029. The next prime is 1020213110107. The reversal of 1020213110031 is 1300113120201.

It is a happy number.

1020213110031 is digitally balanced in base 2 and base 4, because in such bases 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 1020213110031 - 21 = 1020213110029 is a prime.

It is a super-2 number, since 2×10202131100312 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020213110431) 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, 193000216 + ... + 193005501.

It is an arithmetic number, because the mean of its divisors is an integer number (170228521638).

Almost surely, 21020213110031 is an apocalyptic number.

1020213110031 is a deficient number, since it is larger than the sum of its proper divisors (341615063073).

1020213110031 is an equidigital number, since it uses as much as digits as its factorization.

1020213110031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386006601.

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

Adding to 1020213110031 its reverse (1300113120201), we get a palindrome (2320326230232).

The spelling of 1020213110031 in words is "one trillion, twenty billion, two hundred thirteen million, one hundred ten thousand, thirty-one".

Divisors: 1 3 881 2643 386005717 1158017151 340071036677 1020213110031