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321012032030413 = 1975316251305221
BaseRepresentation
bin100100011111101010111000…
…0001000110100011011001101
31120002121110011110012222210221
41020333111300020310123031
5314033430120144433123
63054422520333031341
7124421232260030623
oct11077256010643315
91502543143188727
10321012032030413
1193314490350a39
1230006348025551
1310a173c66520b9
14593b0cb095513
15271a3d640725d
hex123f5702346cd

321012032030413 has 4 divisors (see below), whose sum is σ = 321028283355388. Its totient is φ = 320995780705440.

The previous prime is 321012032030357. The next prime is 321012032030429. The reversal of 321012032030413 is 314030230210123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88308082028644 + 232703950001769 = 9397238^2 + 15254637^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-321012032030413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321012032030813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8125632858 + ... + 8125672363.

It is an arithmetic number, because the mean of its divisors is an integer number (80257070838847).

Almost surely, 2321012032030413 is an apocalyptic number.

It is an amenable number.

321012032030413 is a deficient number, since it is larger than the sum of its proper divisors (16251324975).

321012032030413 is a wasteful number, since it uses less digits than its factorization.

321012032030413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16251324974.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 321012032030413 its reverse (314030230210123), we get a palindrome (635042262240536).

The spelling of 321012032030413 in words is "three hundred twenty-one trillion, twelve billion, thirty-two million, thirty thousand, four hundred thirteen".

Divisors: 1 19753 16251305221 321012032030413