10203621244542 has 96 divisors (see below), whose sum is σ = 24944894714880. Its totient is φ = 3089345490000.

The previous prime is 10203621244447. The next prime is 10203621244571. The reversal of 10203621244542 is 24544212630201.

10203621244542 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 3 + 62 + 12 + 44 + 542 = 666.

It is a super-2 number, since 2×10203621244542² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10203621244497 and 10203621244506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6927667 + ... + 8270417.

It is an arithmetic number, because the mean of its divisors is an integer number (259842653280).

Almost surely, 2^{10203621244542} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10203621244542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12472447357440).

10203621244542 is an abundant number, since it is smaller than the sum of its proper divisors (14741273470338).

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

10203621244542 is a wasteful number, since it uses less digits than its factorization.

10203621244542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343947 (or 1343930 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 10203621244542 its reverse (24544212630201), we get a palindrome (34747833874743).

The spelling of 10203621244542 in words is "ten trillion, two hundred three billion, six hundred twenty-one million, two hundred forty-four thousand, five hundred forty-two".