102144443021420 has 12 divisors (see below), whose sum is σ = 214503330345024. Its totient is φ = 40857777208560.

The previous prime is 102144443021393. The next prime is 102144443021441. The reversal of 102144443021420 is 24120344441201.

It is a super-2 number, since 2×102144443021420² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553611075516 + ... + 2553611075555.

It is an arithmetic number, because the mean of its divisors is an integer number (17875277528752).

Almost surely, 2^{102144443021420} is an apocalyptic number.

102144443021420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102144443021420 is an abundant number, since it is smaller than the sum of its proper divisors (112358887323604).

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

102144443021420 is a wasteful number, since it uses less digits than its factorization.

102144443021420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5107222151080 (or 5107222151078 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 102144443021420 its reverse (24120344441201), we get a palindrome (126264787462621).

The spelling of 102144443021420 in words is "one hundred two trillion, one hundred forty-four billion, four hundred forty-three million, twenty-one thousand, four hundred twenty".