2143131231102 has 32 divisors (see below), whose sum is σ = 4547714740992. Its totient is φ = 670974274944.

The previous prime is 2143131231079. The next prime is 2143131231103. The reversal of 2143131231102 is 2011321313412.

It is a super-2 number, since 2×2143131231102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143131231103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21522288 + ... + 21621635.

It is an arithmetic number, because the mean of its divisors is an integer number (142116085656).

Almost surely, 2^{2143131231102} is an apocalyptic number.

2143131231102 is an abundant number, since it is smaller than the sum of its proper divisors (2404583509890).

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

2143131231102 is a wasteful number, since it uses less digits than its factorization.

2143131231102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43144432.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 2143131231102 its reverse (2011321313412), we get a palindrome (4154452544514).

The spelling of 2143131231102 in words is "two trillion, one hundred forty-three billion, one hundred thirty-one million, two hundred thirty-one thousand, one hundred two".