125213011 has 8 divisors (see below), whose sum is σ = 156109824. Its totient is φ = 97568520.

The previous prime is 125213009. The next prime is 125213027. The reversal of 125213011 is 110312521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125213011 - 2¹ = 125213009 is a prime.

It is a super-2 number, since 2×125213011² = 31356596247372242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125213051) 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, 812995 + ... + 813148.

It is an arithmetic number, because the mean of its divisors is an integer number (19513728).

Almost surely, 2^125213011 is an apocalyptic number.

125213011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

125213011 is a deficient number, since it is larger than the sum of its proper divisors (30896813).

125213011 is a wasteful number, since it uses less digits than its factorization.

125213011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626161.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 125213011 is about 11189.8619741264. The cubic root of 125213011 is about 500.2838534906.

Adding to 125213011 its reverse (110312521), we get a palindrome (235525532).

The spelling of 125213011 in words is "one hundred twenty-five million, two hundred thirteen thousand, eleven".