1021412403 has 16 divisors (see below), whose sum is σ = 1650768000. Its totient is φ = 619037640.

The previous prime is 1021412401. The next prime is 1021412407. The reversal of 1021412403 is 3042141201.

It is not a de Polignac number, because 1021412403 - 2¹ = 1021412401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021412401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1719253 + ... + 1719846.

It is an arithmetic number, because the mean of its divisors is an integer number (103173000).

Almost surely, 2^1021412403 is an apocalyptic number.

1021412403 is a deficient number, since it is larger than the sum of its proper divisors (629355597).

1021412403 is a wasteful number, since it uses less digits than its factorization.

1021412403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3439119 (or 3439113 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1021412403 is about 31959.5432226432. The cubic root of 1021412403 is about 1007.0871217168.

Adding to 1021412403 its reverse (3042141201), we get a palindrome (4063553604).

The spelling of 1021412403 in words is "one billion, twenty-one million, four hundred twelve thousand, four hundred three".