10211311042 has 4 divisors (see below), whose sum is σ = 15316966566. Its totient is φ = 5105655520.

The previous prime is 10211311031. The next prime is 10211311043. The reversal of 10211311042 is 24011311201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24011311201 = 1129 ⋅21267769.

It can be written as a sum of positive squares in only one way, i.e., 8736827841 + 1474483201 = 93471^2 + 38399^2 .

It is a super-2 number, since 2×10211311042² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10211311043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2552827759 + ... + 2552827762.

Almost surely, 2^10211311042 is an apocalyptic number.

10211311042 is a deficient number, since it is larger than the sum of its proper divisors (5105655524).

10211311042 is an equidigital number, since it uses as much as digits as its factorization.

10211311042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105655523.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10211311042 its reverse (24011311201), we get a palindrome (34222622243).

The spelling of 10211311042 in words is "ten billion, two hundred eleven million, three hundred eleven thousand, forty-two".