311101430042042 has 4 divisors (see below), whose sum is σ = 466652145063066. Its totient is φ = 155550715021020.

The previous prime is 311101430042017. The next prime is 311101430042083. The reversal of 311101430042042 is 240240034101113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 239663249685721 + 71438180356321 = 15481061^2 + 8452111^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77775357510509 + ... + 77775357510512.

Almost surely, 2^{311101430042042} is an apocalyptic number.

311101430042042 is a deficient number, since it is larger than the sum of its proper divisors (155550715021024).

311101430042042 is a wasteful number, since it uses less digits than its factorization.

311101430042042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155550715021023.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 311101430042042 its reverse (240240034101113), we get a palindrome (551341464143155).

The spelling of 311101430042042 in words is "three hundred eleven trillion, one hundred one billion, four hundred thirty million, forty-two thousand, forty-two".