31442202102 has 16 divisors (see below), whose sum is σ = 64583983152. Its totient is φ = 10197470880.

The previous prime is 31442202101. The next prime is 31442202119. The reversal of 31442202102 is 20120224413.

It is a super-2 number, since 2×31442202102² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31442202101) 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, 70815549 + ... + 70815992.

It is an arithmetic number, because the mean of its divisors is an integer number (4036498947).

Almost surely, 2^31442202102 is an apocalyptic number.

31442202102 is an abundant number, since it is smaller than the sum of its proper divisors (33141781050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31442202102 is a wasteful number, since it uses less digits than its factorization.

31442202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141631583.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 31442202102 its reverse (20120224413), we get a palindrome (51562426515).

The spelling of 31442202102 in words is "thirty-one billion, four hundred forty-two million, two hundred two thousand, one hundred two".