20310102142 has 16 divisors (see below), whose sum is σ = 33236907264. Its totient is φ = 9231255000.

The previous prime is 20310102107. The next prime is 20310102143. The reversal of 20310102142 is 24120101302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310102143) 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, 600667 + ... + 633577.

It is an arithmetic number, because the mean of its divisors is an integer number (2077306704).

Almost surely, 2^20310102142 is an apocalyptic number.

20310102142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20310102142 is a deficient number, since it is larger than the sum of its proper divisors (12926805122).

20310102142 is a wasteful number, since it uses less digits than its factorization.

20310102142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60975.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20310102142 its reverse (24120101302), we get a palindrome (44430203444).

The spelling of 20310102142 in words is "twenty billion, three hundred ten million, one hundred two thousand, one hundred forty-two".