140550511321 has 16 divisors (see below), whose sum is σ = 155185319808. Its totient is φ = 126230832000.

The previous prime is 140550511319. The next prime is 140550511333. The reversal of 140550511321 is 123115055041.

It is a cyclic number.

It is not a de Polignac number, because 140550511321 - 2¹ = 140550511319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140550511321.

It is not an unprimeable number, because it can be changed into a prime (140550511301) 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, 369316 + ... + 646138.

It is an arithmetic number, because the mean of its divisors is an integer number (9699082488).

Almost surely, 2^140550511321 is an apocalyptic number.

140550511321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140550511321 is a deficient number, since it is larger than the sum of its proper divisors (14634808487).

140550511321 is a wasteful number, since it uses less digits than its factorization.

140550511321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277392.

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 140550511321 its reverse (123115055041), we get a palindrome (263665566362).

The spelling of 140550511321 in words is "one hundred forty billion, five hundred fifty million, five hundred eleven thousand, three hundred twenty-one".