20203124013402 has 64 divisors (see below), whose sum is σ = 45603440640000. Its totient is φ = 5910542617280.

The previous prime is 20203124013361. The next prime is 20203124013409. The reversal of 20203124013402 is 20431042130202.

It is a happy number.

It is a super-2 number, since 2×20203124013402² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20203124013409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22151599 + ... + 23045597.

It is an arithmetic number, because the mean of its divisors is an integer number (712553760000).

Almost surely, 2^{20203124013402} is an apocalyptic number.

20203124013402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20203124013402 is an abundant number, since it is smaller than the sum of its proper divisors (25400316626598).

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

20203124013402 is a wasteful number, since it uses less digits than its factorization.

20203124013402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905851.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20203124013402 its reverse (20431042130202), we get a palindrome (40634166143604).

The spelling of 20203124013402 in words is "twenty trillion, two hundred three billion, one hundred twenty-four million, thirteen thousand, four hundred two".