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1311102025432 = 23797205630807
BaseRepresentation
bin10011000101000011110…
…001010011111011011000
311122100011221202210001021
4103011003301103323120
5132440114104303212
62442151214332224
7163503221223433
oct23050361237330
94570157683037
101311102025432
11466042a05221
121921254ba074
13968371c4464
1447659c1681a
1524188919307
hex13143c53ed8

1311102025432 has 16 divisors (see below), whose sum is σ = 2461400771760. Its totient is φ = 654728486304.

The previous prime is 1311102025427. The next prime is 1311102025543. The reversal of 1311102025432 is 2345202011131.

It is a junction number, because it is equal to n+sod(n) for n = 1311102025397 and 1311102025406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102809028 + ... + 102821779.

It is an arithmetic number, because the mean of its divisors is an integer number (153837548235).

Almost surely, 21311102025432 is an apocalyptic number.

It is an amenable number.

1311102025432 is a deficient number, since it is larger than the sum of its proper divisors (1150298746328).

1311102025432 is a wasteful number, since it uses less digits than its factorization.

1311102025432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205631610 (or 205631606 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 1311102025432 its reverse (2345202011131), we get a palindrome (3656304036563).

The spelling of 1311102025432 in words is "one trillion, three hundred eleven billion, one hundred two million, twenty-five thousand, four hundred thirty-two".

Divisors: 1 2 4 8 797 1594 3188 6376 205630807 411261614 822523228 1645046456 163887753179 327775506358 655551012716 1311102025432