11545121252340 has 240 divisors, whose sum is σ = 40699235541888. Its totient is φ = 2718316060416.

The previous prime is 11545121252321. The next prime is 11545121252347. The reversal of 11545121252340 is 4325212154511.

11545121252340 is a `hidden beast` number, since 1 + 1 + 5 + 4 + 5 + 121 + 2 + 523 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 11545121252295 and 11545121252304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11545121252347) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11433042 + ... + 12401801.

Almost surely, 2^{11545121252340} is an apocalyptic number.

11545121252340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11545121252340 is an abundant number, since it is smaller than the sum of its proper divisors (29154114289548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11545121252340 is a wasteful number, since it uses less digits than its factorization.

11545121252340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23834900 (or 23834889 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 11545121252340 in words is "eleven trillion, five hundred forty-five billion, one hundred twenty-one million, two hundred fifty-two thousand, three hundred forty".