1021404230652 has 24 divisors (see below), whose sum is σ = 2566605503056. Its totient is φ = 314278224768.

The previous prime is 1021404230633. The next prime is 1021404230659. The reversal of 1021404230652 is 2560324041201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021404230659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3273731353 + ... + 3273731664.

Almost surely, 2^{1021404230652} is an apocalyptic number.

1021404230652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021404230652 is an abundant number, since it is smaller than the sum of its proper divisors (1545201272404).

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

1021404230652 is a wasteful number, since it uses less digits than its factorization.

1021404230652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6547463037 (or 6547463035 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1021404230652 its reverse (2560324041201), we get a palindrome (3581728271853).

The spelling of 1021404230652 in words is "one trillion, twenty-one billion, four hundred four million, two hundred thirty thousand, six hundred fifty-two".