10203431321000 has 64 divisors (see below), whose sum is σ = 23876532810000. Its totient is φ = 4081286457600.

The previous prime is 10203431320993. The next prime is 10203431321023. The reversal of 10203431321000 is 12313430201.

It can be written as a sum of positive squares in 8 ways, for example, as 4899502564324 + 5303928756676 = 2213482^2 + 2303026^2 .

It is a super-2 number, since 2×10203431321000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70476686 + ... + 70621314.

Almost surely, 2^{10203431321000} is an apocalyptic number.

10203431321000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10203431321000 is an abundant number, since it is smaller than the sum of its proper divisors (13673101489000).

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

10203431321000 is a wasteful number, since it uses less digits than its factorization.

10203431321000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215199 (or 215185 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 10203431321000 its reverse (12313430201), we get a palindrome (10215744751201).

The spelling of 10203431321000 in words is "ten trillion, two hundred three billion, four hundred thirty-one million, three hundred twenty-one thousand".