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23431210202031 = 315749747792361
BaseRepresentation
bin1010101001111100000001…
…11101011111001110101111
310001222000001022210200120020
411110332000331133032233
511032344104302431111
6121500052132453223
74635564142354452
oct524760075371657
9101860038720506
1023431210202031
117514136343905
122765160a7a213
13100c727471028
145b0110389499
152a9775ea0906
hex154f80f5f3af

23431210202031 has 8 divisors (see below), whose sum is σ = 31440604772784. Its totient is φ = 15521311216320.

The previous prime is 23431210202021. The next prime is 23431210202069. The reversal of 23431210202031 is 13020201213432.

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

It is not a de Polignac number, because 23431210202031 - 211 = 23431210199983 is a prime.

It is a super-2 number, since 2×234312102020312 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23431210201992 and 23431210202010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431210202021) 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, 24873895710 + ... + 24873896651.

It is an arithmetic number, because the mean of its divisors is an integer number (3930075596598).

Almost surely, 223431210202031 is an apocalyptic number.

23431210202031 is a deficient number, since it is larger than the sum of its proper divisors (8009394570753).

23431210202031 is a wasteful number, since it uses less digits than its factorization.

23431210202031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49747792521.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 23431210202031 its reverse (13020201213432), we get a palindrome (36451411415463).

The spelling of 23431210202031 in words is "twenty-three trillion, four hundred thirty-one billion, two hundred ten million, two hundred two thousand, thirty-one".

Divisors: 1 3 157 471 49747792361 149243377083 7810403400677 23431210202031