21310142013402 has 256 divisors, whose sum is σ = 50627285452800. Its totient is φ = 5909624386560.

The previous prime is 21310142013371. The next prime is 21310142013403. The reversal of 21310142013402 is 20431024101312.

It is a super-2 number, since 2×21310142013402² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21310142013403) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3765705249 + ... + 3765710907.

It is an arithmetic number, because the mean of its divisors is an integer number (197762833800).

Almost surely, 2^{21310142013402} is an apocalyptic number.

21310142013402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 21310142013402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25313642726400).

21310142013402 is an abundant number, since it is smaller than the sum of its proper divisors (29317143439398).

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

21310142013402 is a wasteful number, since it uses less digits than its factorization.

21310142013402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21310142013402 its reverse (20431024101312), we get a palindrome (41741166114714).

The spelling of 21310142013402 in words is "twenty-one trillion, three hundred ten billion, one hundred forty-two million, thirteen thousand, four hundred two".