20031377342 has 16 divisors (see below), whose sum is σ = 31634419200. Its totient is φ = 9486768600.

The previous prime is 20031377309. The next prime is 20031377347. The reversal of 20031377342 is 24377313002.

It is a junction number, because it is equal to n+sod(n) for n = 20031377299 and 20031377308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031377347) 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, 168467 + ... + 261617.

It is an arithmetic number, because the mean of its divisors is an integer number (1977151200).

Almost surely, 2^20031377342 is an apocalyptic number.

20031377342 is a deficient number, since it is larger than the sum of its proper divisors (11603041858).

20031377342 is a wasteful number, since it uses less digits than its factorization.

20031377342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98831.

The product of its (nonzero) digits is 21168, while the sum is 32.

The spelling of 20031377342 in words is "twenty billion, thirty-one million, three hundred seventy-seven thousand, three hundred forty-two".