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31421311331141 = 414631655234227
BaseRepresentation
bin1110010010011110110000…
…00110011010101101000101
311010020211220012201100100202
413021033120012122231011
513104301321200044031
6150454430125420245
76422054246356064
oct711173006325505
9133224805640322
1031421311331141
11a014781104906
1236357b170a685
13146c02b2c5424
147a8b2a0ac1db
15397518d822cb
hex1c93d819ab45

31421311331141 has 8 divisors (see below), whose sum is σ = 32257204635264. Its totient is φ = 30588728496480.

The previous prime is 31421311331101. The next prime is 31421311331173. The reversal of 31421311331141 is 14113311312413.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31421311331141 - 230 = 31420237589317 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 (31421311331101) 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, 827598131 + ... + 827636096.

It is an arithmetic number, because the mean of its divisors is an integer number (4032150579408).

Almost surely, 231421311331141 is an apocalyptic number.

It is an amenable number.

31421311331141 is a deficient number, since it is larger than the sum of its proper divisors (835893304123).

31421311331141 is a wasteful number, since it uses less digits than its factorization.

31421311331141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655234731.

The product of its digits is 2592, while the sum is 29.

Adding to 31421311331141 its reverse (14113311312413), we get a palindrome (45534622643554).

The spelling of 31421311331141 in words is "thirty-one trillion, four hundred twenty-one billion, three hundred eleven million, three hundred thirty-one thousand, one hundred forty-one".

Divisors: 1 41 463 18983 1655234227 67864603307 766373447101 31421311331141