312103011 has 16 divisors (see below), whose sum is σ = 454745088. Its totient is φ = 188829600.

The previous prime is 312103003. The next prime is 312103019. The reversal of 312103011 is 110301213.

It is an interprime number because it is at equal distance from previous prime (312103003) and next prime (312103019).

It is not a de Polignac number, because 312103011 - 2³ = 312103003 is a prime.

It is a super-2 number, since 2×312103011² = 194816578950532242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312103019) 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, 12241 + ... + 27821.

It is an arithmetic number, because the mean of its divisors is an integer number (28421568).

Almost surely, 2^312103011 is an apocalyptic number.

312103011 is a deficient number, since it is larger than the sum of its proper divisors (142642077).

312103011 is a wasteful number, since it uses less digits than its factorization.

312103011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16202.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 312103011 is about 17666.4374167516. The cubic root of 312103011 is about 678.3169239967.

Adding to 312103011 its reverse (110301213), we get a palindrome (422404224).

The spelling of 312103011 in words is "three hundred twelve million, one hundred three thousand, eleven".