1042230353621 has 2 divisors, whose sum is σ = 1042230353622. Its totient is φ = 1042230353620.

The previous prime is 1042230353611. The next prime is 1042230353653. The reversal of 1042230353621 is 1263530322401.

It is an a-pointer prime, because the next prime (1042230353653) can be obtained adding 1042230353621 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 798896316100 + 243334037521 = 893810^2 + 493289^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042230353621 - 2¹⁸ = 1042230091477 is a prime.

It is a super-2 number, since 2×1042230353621² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042230353611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521115176810 + 521115176811.

It is an arithmetic number, because the mean of its divisors is an integer number (521115176811).

Almost surely, 2^{1042230353621} is an apocalyptic number.

It is an amenable number.

1042230353621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042230353621 is an equidigital number, since it uses as much as digits as its factorization.

1042230353621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 1042230353621 in words is "one trillion, forty-two billion, two hundred thirty million, three hundred fifty-three thousand, six hundred twenty-one".