140011121 has 2 divisors, whose sum is σ = 140011122. Its totient is φ = 140011120.

The previous prime is 140011117. The next prime is 140011141. The reversal of 140011121 is 121110041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138321121 + 1690000 = 11761^2 + 1300^2 .

It is a cyclic number.

It is not a de Polignac number, because 140011121 - 2² = 140011117 is a prime.

It is a super-2 number, since 2×140011121² = 39206228007353282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (140011141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70005560 + 70005561.

It is an arithmetic number, because the mean of its divisors is an integer number (70005561).

Almost surely, 2^140011121 is an apocalyptic number.

It is an amenable number.

140011121 is a deficient number, since it is larger than the sum of its proper divisors (1).

140011121 is an equidigital number, since it uses as much as digits as its factorization.

140011121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 140011121 is about 11832.6295048903. The cubic root of 140011121 is about 519.2631588037.

Adding to 140011121 its reverse (121110041), we get a palindrome (261121162).

It can be divided in two parts, 1400 and 11121, that added together give a palindrome (12521).

The spelling of 140011121 in words is "one hundred forty million, eleven thousand, one hundred twenty-one".