31401121141 has 8 divisors (see below), whose sum is σ = 35805803544. Its totient is φ = 27280611840.

The previous prime is 31401121127. The next prime is 31401121159. The reversal of 31401121141 is 14112110413.

It can be written as a sum of positive squares in 4 ways, for example, as 14179808241 + 17221312900 = 119079^2 + 131230^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31401121141 - 2³³ = 22811186549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31401131141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71043040 + ... + 71043481.

It is an arithmetic number, because the mean of its divisors is an integer number (4475725443).

Almost surely, 2^31401121141 is an apocalyptic number.

It is an amenable number.

31401121141 is a deficient number, since it is larger than the sum of its proper divisors (4404682403).

31401121141 is a wasteful number, since it uses less digits than its factorization.

31401121141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142086551.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 31401121141 its reverse (14112110413), we get a palindrome (45513231554).

The spelling of 31401121141 in words is "thirty-one billion, four hundred one million, one hundred twenty-one thousand, one hundred forty-one".