140400521331 has 32 divisors (see below), whose sum is σ = 216701337600. Its totient is φ = 79195203360.

The previous prime is 140400521309. The next prime is 140400521341. The reversal of 140400521331 is 133125004041.

It is a happy number.

It is not a de Polignac number, because 140400521331 - 2¹¹ = 140400519283 is a prime.

It is a super-2 number, since 2×140400521331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140400521341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11074126 + ... + 11086796.

It is an arithmetic number, because the mean of its divisors is an integer number (6771916800).

Almost surely, 2^140400521331 is an apocalyptic number.

140400521331 is a deficient number, since it is larger than the sum of its proper divisors (76300816269).

140400521331 is a wasteful number, since it uses less digits than its factorization.

140400521331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19439.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 140400521331 its reverse (133125004041), we get a palindrome (273525525372).

The spelling of 140400521331 in words is "one hundred forty billion, four hundred million, five hundred twenty-one thousand, three hundred thirty-one".