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40401131111 = 11109131257219
BaseRepresentation
bin100101101000000110…
…000101011001100111
310212021121212002221022
4211220012011121213
51130220142143421
630320544241355
72630114643155
oct455006053147
9125247762838
1040401131111
1116152426860
1279b631025b
133a6b1cb953
141d539883d5
1510b6d207ab
hex968185667

40401131111 has 16 divisors (see below), whose sum is σ = 44818012800. Its totient is φ = 36113407200.

The previous prime is 40401131101. The next prime is 40401131123. The reversal of 40401131111 is 11113110404.

It is a cyclic number.

It is not a de Polignac number, because 40401131111 - 210 = 40401130087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40401131111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40401131101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28460 + ... + 285678.

It is an arithmetic number, because the mean of its divisors is an integer number (2801125800).

Almost surely, 240401131111 is an apocalyptic number.

40401131111 is a deficient number, since it is larger than the sum of its proper divisors (4416881689).

40401131111 is a wasteful number, since it uses less digits than its factorization.

40401131111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257470.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 40401131111 its reverse (11113110404), we get a palindrome (51514241515).

The spelling of 40401131111 in words is "forty billion, four hundred one million, one hundred thirty-one thousand, one hundred eleven".

Divisors: 1 11 109 131 1199 1441 14279 157069 257219 2829409 28036871 33695689 308405581 370652579 3672830101 40401131111