31242001143011 has 2 divisors, whose sum is σ = 31242001143012. Its totient is φ = 31242001143010.

The previous prime is 31242001143007. The next prime is 31242001143037. The reversal of 31242001143011 is 11034110024213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31242001143011 - 2² = 31242001143007 is a prime.

It is a super-2 number, since 2×31242001143011² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31242001143061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15621000571505 + 15621000571506.

It is an arithmetic number, because the mean of its divisors is an integer number (15621000571506).

Almost surely, 2^{31242001143011} is an apocalyptic number.

31242001143011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31242001143011 is an equidigital number, since it uses as much as digits as its factorization.

31242001143011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 31242001143011 its reverse (11034110024213), we get a palindrome (42276111167224).

The spelling of 31242001143011 in words is "thirty-one trillion, two hundred forty-two billion, one million, one hundred forty-three thousand, eleven".