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31231132102003 = 431234758824443
BaseRepresentation
bin1110001100111100100001…
…00010001110110101110011
311002120200000021221111211111
413012132100202032311303
513043142324304231003
6150231214540454151
76402242365526101
oct706362042166563
9132520007844744
1031231132102003
119a51059972169
123604976b4a357
1314571107cc692
1479d848416c71
153925d7bb5e6d
hex1c679088ed73

31231132102003 has 8 divisors (see below), whose sum is σ = 31960026318528. Its totient is φ = 30502355559144.

The previous prime is 31231132101991. The next prime is 31231132102061. The reversal of 31231132102003 is 30020123113213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31231132102003 is a prime.

It is a super-2 number, since 2×312311321020032 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31231132108003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28881301 + ... + 29943142.

It is an arithmetic number, because the mean of its divisors is an integer number (3995003289816).

Almost surely, 231231132102003 is an apocalyptic number.

31231132102003 is a deficient number, since it is larger than the sum of its proper divisors (728894216525).

31231132102003 is a wasteful number, since it uses less digits than its factorization.

31231132102003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58836833.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31231132102003 its reverse (30020123113213), we get a palindrome (61251255215216).

The spelling of 31231132102003 in words is "thirty-one trillion, two hundred thirty-one billion, one hundred thirty-two million, one hundred two thousand, three".

Divisors: 1 43 12347 530921 58824443 2529451049 726305397721 31231132102003