1030303310421 has 32 divisors (see below), whose sum is σ = 1712780310528. Its totient is φ = 535201151040.

The previous prime is 1030303310419. The next prime is 1030303310431. The reversal of 1030303310421 is 1240133030301.

It is not a de Polignac number, because 1030303310421 - 2¹ = 1030303310419 is a prime.

It is a super-2 number, since 2×1030303310421² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030303310431) 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, 6901656 + ... + 7049358.

It is an arithmetic number, because the mean of its divisors is an integer number (53524384704).

Almost surely, 2^{1030303310421} is an apocalyptic number.

1030303310421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1030303310421 is a deficient number, since it is larger than the sum of its proper divisors (682477000107).

1030303310421 is a wasteful number, since it uses less digits than its factorization.

1030303310421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177921.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1030303310421 its reverse (1240133030301), we get a palindrome (2270436340722).

The spelling of 1030303310421 in words is "one trillion, thirty billion, three hundred three million, three hundred ten thousand, four hundred twenty-one".