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1031203302213 = 371972297108517
BaseRepresentation
bin11110000000110001000…
…00011010101101000101
310122120201022221102011210
433000120200122231011
5113343401021132323
62105421145322033
7134334115305420
oct17003040325505
93576638842153
101031203302213
11368370420767
12147a2ba96319
137631ba40186
1437ca66009b7
151bc55d2e293
hexf01881ab45

1031203302213 has 32 divisors (see below), whose sum is σ = 1580035970304. Its totient is φ = 586007235072.

The previous prime is 1031203302169. The next prime is 1031203302229. The reversal of 1031203302213 is 3122033021301.

It is not a de Polignac number, because 1031203302213 - 228 = 1030934866757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1031203302213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031203302253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9448431 + ... + 9556947.

It is an arithmetic number, because the mean of its divisors is an integer number (49376124072).

Almost surely, 21031203302213 is an apocalyptic number.

It is an amenable number.

1031203302213 is a deficient number, since it is larger than the sum of its proper divisors (548832668091).

1031203302213 is a wasteful number, since it uses less digits than its factorization.

1031203302213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111021.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1031203302213 its reverse (3122033021301), we get a palindrome (4153236323514).

The spelling of 1031203302213 in words is "one trillion, thirty-one billion, two hundred three million, three hundred two thousand, two hundred thirteen".

Divisors: 1 3 7 21 197 591 1379 2297 4137 6891 16079 48237 108517 325551 452509 759619 1357527 2278857 3167563 9502689 21377849 64133547 149644943 249263549 448934829 747790647 1744844843 5234534529 49104919153 147314757459 343734434071 1031203302213