140121101140431 has 16 divisors (see below), whose sum is σ = 197819027378784. Its totient is φ = 87918676844544.

The previous prime is 140121101140379. The next prime is 140121101140459. The reversal of 140121101140431 is 134041101121041.

It is a happy number.

It is not a de Polignac number, because 140121101140431 - 2¹⁰ = 140121101139407 is a prime.

It is a super-2 number, since 2×140121101140431² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140121101141431) 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, 3353241 + ... + 17072973.

It is an arithmetic number, because the mean of its divisors is an integer number (12363689211174).

Almost surely, 2^{140121101140431} is an apocalyptic number.

140121101140431 is a deficient number, since it is larger than the sum of its proper divisors (57697926238353).

140121101140431 is a wasteful number, since it uses less digits than its factorization.

140121101140431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13920010.

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 140121101140431 its reverse (134041101121041), we get a palindrome (274162202261472).

The spelling of 140121101140431 in words is "one hundred forty trillion, one hundred twenty-one billion, one hundred one million, one hundred forty thousand, four hundred thirty-one".