1016213331 has 32 divisors (see below), whose sum is σ = 1641024000. Its totient is φ = 546981120.

The previous prime is 1016213323. The next prime is 1016213333. The reversal of 1016213331 is 1333126101.

It is not a de Polignac number, because 1016213331 - 2³ = 1016213323 is a prime.

It is a super-2 number, since 2×1016213331² = 2065379068204231122, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1016213298 and 1016213307.

It is not an unprimeable number, because it can be changed into a prime (1016213333) 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, 4620 + ... + 45318.

It is an arithmetic number, because the mean of its divisors is an integer number (51282000).

Almost surely, 2^1016213331 is an apocalyptic number.

1016213331 is a deficient number, since it is larger than the sum of its proper divisors (624810669).

1016213331 is a wasteful number, since it uses less digits than its factorization.

1016213331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40779.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1016213331 is about 31878.1011197342. The cubic root of 1016213331 is about 1005.3754959334.

Adding to 1016213331 its reverse (1333126101), we get a palindrome (2349339432).

The spelling of 1016213331 in words is "one billion, sixteen million, two hundred thirteen thousand, three hundred thirty-one".