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31301102112001 = 72251433227251
BaseRepresentation
bin1110001110111110110110…
…00100101000110100000001
311002211100121121212022011021
413013133123010220310001
513100314124120041001
6150323310000545441
76410300330021251
oct707373304506401
9132740547768137
1031301102112001
119a787a5140307
123616443922281
1314608b1976767
147a2da5063961
15394330850ba1
hex1c77db128d01

31301102112001 has 4 divisors (see below), whose sum is σ = 31301535411504. Its totient is φ = 31300668812500.

The previous prime is 31301102111959. The next prime is 31301102112029. The reversal of 31301102112001 is 10021120110313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31301102112001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31301102112061) 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, 216541375 + ... + 216685876.

It is an arithmetic number, because the mean of its divisors is an integer number (7825383852876).

Almost surely, 231301102112001 is an apocalyptic number.

It is an amenable number.

31301102112001 is a deficient number, since it is larger than the sum of its proper divisors (433299503).

31301102112001 is an equidigital number, since it uses as much as digits as its factorization.

31301102112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433299502.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 31301102112001 its reverse (10021120110313), we get a palindrome (41322222222314).

The spelling of 31301102112001 in words is "thirty-one trillion, three hundred one billion, one hundred two million, one hundred twelve thousand, one".

Divisors: 1 72251 433227251 31301102112001