1216467031 has 16 divisors (see below), whose sum is σ = 1357443360. Its totient is φ = 1082390400.

The previous prime is 1216467013. The next prime is 1216467059. The reversal of 1216467031 is 1307646121.

It is not a de Polignac number, because 1216467031 - 2⁹ = 1216466519 is a prime.

It is a super-2 number, since 2×1216467031² = 2959584075019909922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1216466984 and 1216467002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216464031) 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, 261976 + ... + 266578.

It is an arithmetic number, because the mean of its divisors is an integer number (84840210).

Almost surely, 2^1216467031 is an apocalyptic number.

1216467031 is a deficient number, since it is larger than the sum of its proper divisors (140976329).

1216467031 is a wasteful number, since it uses less digits than its factorization.

1216467031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1216467031 is about 34877.8874216888. The cubic root of 1216467031 is about 1067.4972896179.

The spelling of 1216467031 in words is "one billion, two hundred sixteen million, four hundred sixty-seven thousand, thirty-one".